diff --git a/lib/tsc.js b/lib/tsc.js
index 99e4d75cbf7..a406821066c 100644
--- a/lib/tsc.js
+++ b/lib/tsc.js
@@ -20057,6 +20057,9 @@ var ts;
                 return type;
             }
             function narrowTypeByEquality(type, operator, value, assumeTrue) {
+                if (type.flags & 1) {
+                    return type;
+                }
                 if (operator === 31 || operator === 33) {
                     assumeTrue = !assumeTrue;
                 }
diff --git a/lib/tsserver.js b/lib/tsserver.js
index ea61f48883c..b469d67279a 100644
--- a/lib/tsserver.js
+++ b/lib/tsserver.js
@@ -21053,6 +21053,9 @@ var ts;
                 return type;
             }
             function narrowTypeByEquality(type, operator, value, assumeTrue) {
+                if (type.flags & 1) {
+                    return type;
+                }
                 if (operator === 31 || operator === 33) {
                     assumeTrue = !assumeTrue;
                 }
diff --git a/lib/tsserverlibrary.js b/lib/tsserverlibrary.js
index 88edc5dce20..2c5f0a8bf28 100644
--- a/lib/tsserverlibrary.js
+++ b/lib/tsserverlibrary.js
@@ -21053,6 +21053,9 @@ var ts;
                 return type;
             }
             function narrowTypeByEquality(type, operator, value, assumeTrue) {
+                if (type.flags & 1) {
+                    return type;
+                }
                 if (operator === 31 || operator === 33) {
                     assumeTrue = !assumeTrue;
                 }
diff --git a/lib/typescript.js b/lib/typescript.js
index d3b32c17496..a1d387f2539 100644
--- a/lib/typescript.js
+++ b/lib/typescript.js
@@ -24324,6 +24324,9 @@ var ts;
                 return type;
             }
             function narrowTypeByEquality(type, operator, value, assumeTrue) {
+                if (type.flags & 1 /* Any */) {
+                    return type;
+                }
                 if (operator === 31 /* ExclamationEqualsToken */ || operator === 33 /* ExclamationEqualsEqualsToken */) {
                     assumeTrue = !assumeTrue;
                 }
diff --git a/lib/typescriptServices.js b/lib/typescriptServices.js
index d3b32c17496..a1d387f2539 100644
--- a/lib/typescriptServices.js
+++ b/lib/typescriptServices.js
@@ -24324,6 +24324,9 @@ var ts;
                 return type;
             }
             function narrowTypeByEquality(type, operator, value, assumeTrue) {
+                if (type.flags & 1 /* Any */) {
+                    return type;
+                }
                 if (operator === 31 /* ExclamationEqualsToken */ || operator === 33 /* ExclamationEqualsEqualsToken */) {
                     assumeTrue = !assumeTrue;
                 }