diff --git a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.argSynonymForParamTag.json b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.argSynonymForParamTag.json
index 7e4346eba68..92b9cb450e6 100644
--- a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.argSynonymForParamTag.json
+++ b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.argSynonymForParamTag.json
@@ -6,7 +6,7 @@
         "0": {
             "kind": "JSDocParameterTag",
             "pos": 8,
-            "end": 27,
+            "end": 28,
             "atToken": {
                 "kind": "AtToken",
                 "pos": 8,
@@ -44,6 +44,6 @@
         },
         "length": 1,
         "pos": 8,
-        "end": 27
+        "end": 28
     }
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.argumentSynonymForParamTag.json b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.argumentSynonymForParamTag.json
index e46a09e6561..f398fb3af41 100644
--- a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.argumentSynonymForParamTag.json
+++ b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.argumentSynonymForParamTag.json
@@ -6,7 +6,7 @@
         "0": {
             "kind": "JSDocParameterTag",
             "pos": 8,
-            "end": 32,
+            "end": 33,
             "atToken": {
                 "kind": "AtToken",
                 "pos": 8,
@@ -44,6 +44,6 @@
         },
         "length": 1,
         "pos": 8,
-        "end": 32
+        "end": 33
     }
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.oneParamTag.json b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.oneParamTag.json
index af20bf8d6bb..e70fc95367f 100644
--- a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.oneParamTag.json
+++ b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.oneParamTag.json
@@ -6,7 +6,7 @@
         "0": {
             "kind": "JSDocParameterTag",
             "pos": 8,
-            "end": 29,
+            "end": 30,
             "atToken": {
                 "kind": "AtToken",
                 "pos": 8,
@@ -44,6 +44,6 @@
         },
         "length": 1,
         "pos": 8,
-        "end": 29
+        "end": 30
     }
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.paramTag1.json b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.paramTag1.json
index 5e0c3d21744..0dbdd83d2ba 100644
--- a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.paramTag1.json
+++ b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.paramTag1.json
@@ -6,7 +6,7 @@
         "0": {
             "kind": "JSDocParameterTag",
             "pos": 8,
-            "end": 29,
+            "end": 30,
             "atToken": {
                 "kind": "AtToken",
                 "pos": 8,
@@ -44,6 +44,6 @@
         },
         "length": 1,
         "pos": 8,
-        "end": 29
+        "end": 30
     }
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.paramWithoutType.json b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.paramWithoutType.json
index 17036e3729a..2ff182483d9 100644
--- a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.paramWithoutType.json
+++ b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.paramWithoutType.json
@@ -6,7 +6,7 @@
         "0": {
             "kind": "JSDocParameterTag",
             "pos": 8,
-            "end": 18,
+            "end": 19,
             "atToken": {
                 "kind": "AtToken",
                 "pos": 8,
@@ -34,6 +34,6 @@
         },
         "length": 1,
         "pos": 8,
-        "end": 18
+        "end": 19
     }
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.twoParamTag2.json b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.twoParamTag2.json
index d5d04dce69c..b51ab3598e6 100644
--- a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.twoParamTag2.json
+++ b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.twoParamTag2.json
@@ -6,7 +6,7 @@
         "0": {
             "kind": "JSDocParameterTag",
             "pos": 8,
-            "end": 29,
+            "end": 32,
             "atToken": {
                 "kind": "AtToken",
                 "pos": 8,
@@ -45,7 +45,7 @@
         "1": {
             "kind": "JSDocParameterTag",
             "pos": 34,
-            "end": 55,
+            "end": 56,
             "atToken": {
                 "kind": "AtToken",
                 "pos": 34,
@@ -83,6 +83,6 @@
         },
         "length": 2,
         "pos": 8,
-        "end": 55
+        "end": 56
     }
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.twoParamTagOnSameLine.json b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.twoParamTagOnSameLine.json
index 4c85b2c9aed..3c20d5edcbc 100644
--- a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.twoParamTagOnSameLine.json
+++ b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.twoParamTagOnSameLine.json
@@ -6,7 +6,7 @@
         "0": {
             "kind": "JSDocParameterTag",
             "pos": 8,
-            "end": 29,
+            "end": 30,
             "atToken": {
                 "kind": "AtToken",
                 "pos": 8,
@@ -45,7 +45,7 @@
         "1": {
             "kind": "JSDocParameterTag",
             "pos": 30,
-            "end": 51,
+            "end": 52,
             "atToken": {
                 "kind": "AtToken",
                 "pos": 30,
@@ -83,6 +83,6 @@
         },
         "length": 2,
         "pos": 8,
-        "end": 51
+        "end": 52
     }
 }
\ No newline at end of file
diff --git a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.typedefTagWithChildrenTags.json b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.typedefTagWithChildrenTags.json
index 7ef64f5a971..7a8f9c4bcc9 100644
--- a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.typedefTagWithChildrenTags.json
+++ b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.typedefTagWithChildrenTags.json
@@ -82,12 +82,6 @@
                             "end": 56,
                             "text": "property"
                         },
-                        "name": {
-                            "kind": "Identifier",
-                            "pos": 66,
-                            "end": 69,
-                            "text": "age"
-                        },
                         "typeExpression": {
                             "kind": "JSDocTypeExpression",
                             "pos": 57,
@@ -97,6 +91,18 @@
                                 "pos": 58,
                                 "end": 64
                             }
+                        },
+                        "postParameterName": {
+                            "kind": "Identifier",
+                            "pos": 66,
+                            "end": 69,
+                            "text": "age"
+                        },
+                        "name": {
+                            "kind": "Identifier",
+                            "pos": 66,
+                            "end": 69,
+                            "text": "age"
                         }
                     },
                     {
@@ -114,12 +120,6 @@
                             "end": 83,
                             "text": "property"
                         },
-                        "name": {
-                            "kind": "Identifier",
-                            "pos": 93,
-                            "end": 97,
-                            "text": "name"
-                        },
                         "typeExpression": {
                             "kind": "JSDocTypeExpression",
                             "pos": 84,
@@ -129,6 +129,18 @@
                                 "pos": 85,
                                 "end": 91
                             }
+                        },
+                        "postParameterName": {
+                            "kind": "Identifier",
+                            "pos": 93,
+                            "end": 97,
+                            "text": "name"
+                        },
+                        "name": {
+                            "kind": "Identifier",
+                            "pos": 93,
+                            "end": 97,
+                            "text": "name"
                         }
                     }
                 ]
diff --git a/tests/baselines/reference/checkJsdocTypedefInParamTag1.js b/tests/baselines/reference/checkJsdocTypedefInParamTag1.js
index d4983bfd581..8ef81a71cb8 100644
--- a/tests/baselines/reference/checkJsdocTypedefInParamTag1.js
+++ b/tests/baselines/reference/checkJsdocTypedefInParamTag1.js
@@ -11,7 +11,18 @@
  */
 function foo(opts) {}
 
-foo({x: 'abc'});
+foo({x: 'abc'});
+
+/**
+ * @typedef {Object} AnotherOpts
+ * @property anotherX {string}
+ * @property anotherY {string=}
+ * 
+ * @param {AnotherOpts} opts
+ */
+function foo1(opts) {}
+
+foo1({anotherX: "world"});
 
 //// [0.js]
 // @ts-check
@@ -26,3 +37,12 @@ foo({x: 'abc'});
  */
 function foo(opts) { }
 foo({ x: 'abc' });
+/**
+ * @typedef {Object} AnotherOpts
+ * @property anotherX {string}
+ * @property anotherY {string=}
+ *
+ * @param {AnotherOpts} opts
+ */
+function foo1(opts) { }
+foo1({ anotherX: "world" });
diff --git a/tests/baselines/reference/checkJsdocTypedefInParamTag1.symbols b/tests/baselines/reference/checkJsdocTypedefInParamTag1.symbols
index cd2455797b4..596e5ca89c5 100644
--- a/tests/baselines/reference/checkJsdocTypedefInParamTag1.symbols
+++ b/tests/baselines/reference/checkJsdocTypedefInParamTag1.symbols
@@ -17,3 +17,18 @@ foo({x: 'abc'});
 >foo : Symbol(foo, Decl(0.js, 0, 0))
 >x : Symbol(x, Decl(0.js, 12, 5))
 
+/**
+ * @typedef {Object} AnotherOpts
+ * @property anotherX {string}
+ * @property anotherY {string=}
+ * 
+ * @param {AnotherOpts} opts
+ */
+function foo1(opts) {}
+>foo1 : Symbol(foo1, Decl(0.js, 12, 16))
+>opts : Symbol(opts, Decl(0.js, 21, 14))
+
+foo1({anotherX: "world"});
+>foo1 : Symbol(foo1, Decl(0.js, 12, 16))
+>anotherX : Symbol(anotherX, Decl(0.js, 23, 6))
+
diff --git a/tests/baselines/reference/checkJsdocTypedefInParamTag1.types b/tests/baselines/reference/checkJsdocTypedefInParamTag1.types
index cc923e33030..82b17d71a4a 100644
--- a/tests/baselines/reference/checkJsdocTypedefInParamTag1.types
+++ b/tests/baselines/reference/checkJsdocTypedefInParamTag1.types
@@ -20,3 +20,21 @@ foo({x: 'abc'});
 >x : string
 >'abc' : "abc"
 
+/**
+ * @typedef {Object} AnotherOpts
+ * @property anotherX {string}
+ * @property anotherY {string=}
+ * 
+ * @param {AnotherOpts} opts
+ */
+function foo1(opts) {}
+>foo1 : (opts: { anotherX: string; anotherY?: string; }) => void
+>opts : { anotherX: string; anotherY?: string; }
+
+foo1({anotherX: "world"});
+>foo1({anotherX: "world"}) : void
+>foo1 : (opts: { anotherX: string; anotherY?: string; }) => void
+>{anotherX: "world"} : { anotherX: string; }
+>anotherX : string
+>"world" : "world"
+
diff --git a/tests/cases/conformance/jsdoc/checkJsdocTypedefInParamTag1.ts b/tests/cases/conformance/jsdoc/checkJsdocTypedefInParamTag1.ts
index 80ca21bd4ff..853a65766ce 100644
--- a/tests/cases/conformance/jsdoc/checkJsdocTypedefInParamTag1.ts
+++ b/tests/cases/conformance/jsdoc/checkJsdocTypedefInParamTag1.ts
@@ -14,4 +14,15 @@
  */
 function foo(opts) {}
 
-foo({x: 'abc'});
\ No newline at end of file
+foo({x: 'abc'});
+
+/**
+ * @typedef {Object} AnotherOpts
+ * @property anotherX {string}
+ * @property anotherY {string=}
+ * 
+ * @param {AnotherOpts} opts
+ */
+function foo1(opts) {}
+
+foo1({anotherX: "world"});
\ No newline at end of file