diff --git a/tests/baselines/reference/objectLiteralExcessProperties.errors.txt b/tests/baselines/reference/objectLiteralExcessProperties.errors.txt
new file mode 100644
index 00000000000..84f635bf947
--- /dev/null
+++ b/tests/baselines/reference/objectLiteralExcessProperties.errors.txt
@@ -0,0 +1,66 @@
+tests/cases/compiler/objectLiteralExcessProperties.ts(9,18): error TS2322: Type '{ forword: string; }' is not assignable to type 'Book'.
+  Object literal may only specify known properties, and 'forword' does not exist in type 'Book'.
+tests/cases/compiler/objectLiteralExcessProperties.ts(11,27): error TS2322: Type '{ foreward: string; }' is not assignable to type 'Book | string'.
+  Object literal may only specify known properties, and 'foreward' does not exist in type 'Book | string'.
+tests/cases/compiler/objectLiteralExcessProperties.ts(13,53): error TS2322: Type '({ foreword: string; } | { forwards: string; })[]' is not assignable to type 'Book | Book[]'.
+  Type '({ foreword: string; } | { forwards: string; })[]' is not assignable to type 'Book[]'.
+    Type '{ foreword: string; } | { forwards: string; }' is not assignable to type 'Book'.
+      Type '{ forwards: string; }' is not assignable to type 'Book'.
+        Object literal may only specify known properties, and 'forwards' does not exist in type 'Book'.
+tests/cases/compiler/objectLiteralExcessProperties.ts(15,42): error TS2322: Type '{ foreword: string; colour: string; }' is not assignable to type 'Book & Cover'.
+  Object literal may only specify known properties, and 'colour' does not exist in type 'Book & Cover'.
+tests/cases/compiler/objectLiteralExcessProperties.ts(17,26): error TS2322: Type '{ foreward: string; color: string; }' is not assignable to type 'Book & Cover'.
+  Object literal may only specify known properties, and 'foreward' does not exist in type 'Book & Cover'.
+tests/cases/compiler/objectLiteralExcessProperties.ts(19,57): error TS2322: Type '{ foreword: string; color: string; price: number; }' is not assignable to type 'Book & Cover'.
+  Object literal may only specify known properties, and 'price' does not exist in type 'Book & Cover'.
+tests/cases/compiler/objectLiteralExcessProperties.ts(21,43): error TS2322: Type '{ foreword: string; price: number; }' is not assignable to type 'Book & number'.
+  Object literal may only specify known properties, and 'price' does not exist in type 'Book & number'.
+
+
+==== tests/cases/compiler/objectLiteralExcessProperties.ts (7 errors) ====
+    interface Book {
+        foreword: string;
+    }
+    
+    interface Cover {
+        color?: string;
+    }
+    
+    var b1: Book = { forword: "oops" };
+                     ~~~~~~~~~~~~~~~
+!!! error TS2322: Type '{ forword: string; }' is not assignable to type 'Book'.
+!!! error TS2322:   Object literal may only specify known properties, and 'forword' does not exist in type 'Book'.
+    
+    var b2: Book | string = { foreward: "nope" };
+                              ~~~~~~~~~~~~~~~~
+!!! error TS2322: Type '{ foreward: string; }' is not assignable to type 'Book | string'.
+!!! error TS2322:   Object literal may only specify known properties, and 'foreward' does not exist in type 'Book | string'.
+    
+    var b3: Book | (Book[]) = [{ foreword: "hello" }, { forwards: "back" }];
+                                                        ~~~~~~~~~~~~~~~~
+!!! error TS2322: Type '({ foreword: string; } | { forwards: string; })[]' is not assignable to type 'Book | Book[]'.
+!!! error TS2322:   Type '({ foreword: string; } | { forwards: string; })[]' is not assignable to type 'Book[]'.
+!!! error TS2322:     Type '{ foreword: string; } | { forwards: string; }' is not assignable to type 'Book'.
+!!! error TS2322:       Type '{ forwards: string; }' is not assignable to type 'Book'.
+!!! error TS2322:         Object literal may only specify known properties, and 'forwards' does not exist in type 'Book'.
+    
+    var b4: Book & Cover = { foreword: "hi", colour: "blue" };
+                                             ~~~~~~~~~~~~~~
+!!! error TS2322: Type '{ foreword: string; colour: string; }' is not assignable to type 'Book & Cover'.
+!!! error TS2322:   Object literal may only specify known properties, and 'colour' does not exist in type 'Book & Cover'.
+    
+    var b5: Book & Cover = { foreward: "hi", color: "blue" };
+                             ~~~~~~~~~~~~~~
+!!! error TS2322: Type '{ foreward: string; color: string; }' is not assignable to type 'Book & Cover'.
+!!! error TS2322:   Object literal may only specify known properties, and 'foreward' does not exist in type 'Book & Cover'.
+    
+    var b6: Book & Cover = { foreword: "hi", color: "blue", price: 10.99 };
+                                                            ~~~~~~~~~~~~
+!!! error TS2322: Type '{ foreword: string; color: string; price: number; }' is not assignable to type 'Book & Cover'.
+!!! error TS2322:   Object literal may only specify known properties, and 'price' does not exist in type 'Book & Cover'.
+    
+    var b7: Book & number = { foreword: "hi", price: 10.99 };
+                                              ~~~~~~~~~~~~
+!!! error TS2322: Type '{ foreword: string; price: number; }' is not assignable to type 'Book & number'.
+!!! error TS2322:   Object literal may only specify known properties, and 'price' does not exist in type 'Book & number'.
+    
\ No newline at end of file
diff --git a/tests/baselines/reference/objectLiteralExcessProperties.js b/tests/baselines/reference/objectLiteralExcessProperties.js
new file mode 100644
index 00000000000..747928ccb20
--- /dev/null
+++ b/tests/baselines/reference/objectLiteralExcessProperties.js
@@ -0,0 +1,32 @@
+//// [objectLiteralExcessProperties.ts]
+interface Book {
+    foreword: string;
+}
+
+interface Cover {
+    color?: string;
+}
+
+var b1: Book = { forword: "oops" };
+
+var b2: Book | string = { foreward: "nope" };
+
+var b3: Book | (Book[]) = [{ foreword: "hello" }, { forwards: "back" }];
+
+var b4: Book & Cover = { foreword: "hi", colour: "blue" };
+
+var b5: Book & Cover = { foreward: "hi", color: "blue" };
+
+var b6: Book & Cover = { foreword: "hi", color: "blue", price: 10.99 };
+
+var b7: Book & number = { foreword: "hi", price: 10.99 };
+
+
+//// [objectLiteralExcessProperties.js]
+var b1 = { forword: "oops" };
+var b2 = { foreward: "nope" };
+var b3 = [{ foreword: "hello" }, { forwards: "back" }];
+var b4 = { foreword: "hi", colour: "blue" };
+var b5 = { foreward: "hi", color: "blue" };
+var b6 = { foreword: "hi", color: "blue", price: 10.99 };
+var b7 = { foreword: "hi", price: 10.99 };
diff --git a/tests/cases/compiler/objectLiteralExcessProperties.ts b/tests/cases/compiler/objectLiteralExcessProperties.ts
new file mode 100644
index 00000000000..0aa81703c33
--- /dev/null
+++ b/tests/cases/compiler/objectLiteralExcessProperties.ts
@@ -0,0 +1,21 @@
+interface Book {
+    foreword: string;
+}
+
+interface Cover {
+    color?: string;
+}
+
+var b1: Book = { forword: "oops" };
+
+var b2: Book | string = { foreward: "nope" };
+
+var b3: Book | (Book[]) = [{ foreword: "hello" }, { forwards: "back" }];
+
+var b4: Book & Cover = { foreword: "hi", colour: "blue" };
+
+var b5: Book & Cover = { foreward: "hi", color: "blue" };
+
+var b6: Book & Cover = { foreword: "hi", color: "blue", price: 10.99 };
+
+var b7: Book & number = { foreword: "hi", price: 10.99 };