diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 1a692572802..419779c3f2d 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -1067,9 +1067,15 @@ namespace ts {
                             );
                         }
                         for (let id in lookupTable) {
-                            if (id !== "export=" && lookupTable[id].exportsWithDuplicate.length && !(id in symbols)) { // It's not an error if the file with multiple export *'s with duplicate names exports a member with that name itself
+                            // It's not an error if the file with multiple export *'s with duplicate names exports a member with that name itself
+                            if (id !== "export=" && lookupTable[id].exportsWithDuplicate.length && !(id in symbols)) {
                                 for (let node of lookupTable[id].exportsWithDuplicate) {
-                                    diagnostics.add(createDiagnosticForNode(node, Diagnostics.An_export_Asterisk_from_0_declaration_has_already_exported_a_member_named_1_Consider_explicitly_re_exporting_to_resolve_the_ambiguity, lookupTable[id].specifierText, id));
+                                    diagnostics.add(createDiagnosticForNode(
+                                        node,
+                                        Diagnostics.An_export_Asterisk_from_0_declaration_has_already_exported_a_member_named_1_Consider_explicitly_re_exporting_to_resolve_the_ambiguity,
+                                        lookupTable[id].specifierText,
+                                        id
+                                    ));
                                 }
                             }
                         }
@@ -13722,7 +13728,7 @@ namespace ts {
 
         function checkExternalModuleExports(node: SourceFile | ModuleDeclaration) {
             let moduleSymbol = getSymbolOfNode(node);
-            let links: SymbolLinks = getSymbolLinks(moduleSymbol);
+            let links = getSymbolLinks(moduleSymbol);
             if (!links.exportsChecked) {
                 let exportEqualsSymbol = moduleSymbol.exports["export="];
                 if (exportEqualsSymbol && hasExportedMembers(moduleSymbol)) {
@@ -13732,9 +13738,11 @@ namespace ts {
                 let exports = getExportsOfModule(moduleSymbol); // Checks for export * conflicts
                 for (let id in exports) {
                     if (id === "__export") continue;
-                    if (!(exports[id].flags & SymbolFlags.Namespace || exports[id].flags & SymbolFlags.Interface) && exports[id].declarations.length > 1) { // 15.2.1.1 It is a Syntax Error if the ExportedNames of ModuleItemList contains any duplicate entries. (TS Exceptions: namespaces, function overloads, and interfaces)
+                    let exportedSymbol = exports[id];
+                     // 15.2.1.1 It is a Syntax Error if the ExportedNames of ModuleItemList contains any duplicate entries. (TS Exceptions: namespaces, function overloads, enums, and interfaces)
+                    if (!(exportedSymbol.flags & SymbolFlags.Namespace || exportedSymbol.flags & SymbolFlags.Interface || exportedSymbol.flags & SymbolFlags.Enum) && exportedSymbol.declarations.length > 1) {
                         let exportedDeclarations: Declaration[] = [];
-                        for (let declaration of exports[id].declarations) {
+                        for (let declaration of exportedSymbol.declarations) {
                             if (declaration.kind === SyntaxKind.FunctionDeclaration) {
                                 if (!(declaration as FunctionDeclaration).body) {
                                     continue;
diff --git a/tests/baselines/reference/moduleDuplicateIdentifiers.errors.txt b/tests/baselines/reference/moduleDuplicateIdentifiers.errors.txt
index 67ab99eee4b..22bd6641a83 100644
--- a/tests/baselines/reference/moduleDuplicateIdentifiers.errors.txt
+++ b/tests/baselines/reference/moduleDuplicateIdentifiers.errors.txt
@@ -16,7 +16,7 @@ tests/cases/compiler/moduleDuplicateIdentifiers.ts(24,14): error TS2300: Duplica
     	_brand1: any;
     }
     
-    export interface Bar {
+    export interface Bar { // Shouldn't error
     	_brand2: any;
     }
     
@@ -24,7 +24,7 @@ tests/cases/compiler/moduleDuplicateIdentifiers.ts(24,14): error TS2300: Duplica
     	export var member1 = 2;
     }
     
-    export namespace FooBar {
+    export namespace FooBar { // Shouldn't error
     	export var member2 = 42;
     }
     
@@ -34,11 +34,22 @@ tests/cases/compiler/moduleDuplicateIdentifiers.ts(24,14): error TS2300: Duplica
     	member1 = 2;
     }
     
-    export class Kettle {
+    export class Kettle { // Should error
                  ~~~~~~
 !!! error TS2300: Duplicate identifier 'Kettle'.
     	member2 = 42;
     }
     
     export var Pot = 2;
-    Pot = 42; // Shouldn't error
\ No newline at end of file
+    Pot = 42; // Shouldn't error
+    
+    export enum Utensils {
+    	Spoon,
+    	Fork,
+    	Knife
+    }
+    
+    export enum Utensils { // Shouldn't error
+    	Spork = 3
+    }
+    
\ No newline at end of file
diff --git a/tests/baselines/reference/moduleDuplicateIdentifiers.js b/tests/baselines/reference/moduleDuplicateIdentifiers.js
index e428ccd3c81..e02914bd874 100644
--- a/tests/baselines/reference/moduleDuplicateIdentifiers.js
+++ b/tests/baselines/reference/moduleDuplicateIdentifiers.js
@@ -6,7 +6,7 @@ export interface Bar {
 	_brand1: any;
 }
 
-export interface Bar {
+export interface Bar { // Shouldn't error
 	_brand2: any;
 }
 
@@ -14,7 +14,7 @@ export namespace FooBar {
 	export var member1 = 2;
 }
 
-export namespace FooBar {
+export namespace FooBar { // Shouldn't error
 	export var member2 = 42;
 }
 
@@ -22,12 +22,23 @@ export class Kettle {
 	member1 = 2;
 }
 
-export class Kettle {
+export class Kettle { // Should error
 	member2 = 42;
 }
 
 export var Pot = 2;
-Pot = 42; // Shouldn't error
+Pot = 42; // Shouldn't error
+
+export enum Utensils {
+	Spoon,
+	Fork,
+	Knife
+}
+
+export enum Utensils { // Shouldn't error
+	Spork = 3
+}
+
 
 //// [moduleDuplicateIdentifiers.js]
 exports.Foo = 2;
@@ -56,3 +67,13 @@ var Kettle = (function () {
 exports.Kettle = Kettle;
 exports.Pot = 2;
 exports.Pot = 42; // Shouldn't error
+(function (Utensils) {
+    Utensils[Utensils["Spoon"] = 0] = "Spoon";
+    Utensils[Utensils["Fork"] = 1] = "Fork";
+    Utensils[Utensils["Knife"] = 2] = "Knife";
+})(exports.Utensils || (exports.Utensils = {}));
+var Utensils = exports.Utensils;
+(function (Utensils) {
+    Utensils[Utensils["Spork"] = 3] = "Spork";
+})(exports.Utensils || (exports.Utensils = {}));
+var Utensils = exports.Utensils;
diff --git a/tests/cases/compiler/moduleDuplicateIdentifiers.ts b/tests/cases/compiler/moduleDuplicateIdentifiers.ts
index 283a6d241bf..47be2bc5dbb 100644
--- a/tests/cases/compiler/moduleDuplicateIdentifiers.ts
+++ b/tests/cases/compiler/moduleDuplicateIdentifiers.ts
@@ -6,7 +6,7 @@ export interface Bar {
 	_brand1: any;
 }
 
-export interface Bar {
+export interface Bar { // Shouldn't error
 	_brand2: any;
 }
 
@@ -14,7 +14,7 @@ export namespace FooBar {
 	export var member1 = 2;
 }
 
-export namespace FooBar {
+export namespace FooBar { // Shouldn't error
 	export var member2 = 42;
 }
 
@@ -22,9 +22,19 @@ export class Kettle {
 	member1 = 2;
 }
 
-export class Kettle {
+export class Kettle { // Should error
 	member2 = 42;
 }
 
 export var Pot = 2;
-Pot = 42; // Shouldn't error
\ No newline at end of file
+Pot = 42; // Shouldn't error
+
+export enum Utensils {
+	Spoon,
+	Fork,
+	Knife
+}
+
+export enum Utensils { // Shouldn't error
+	Spork = 3
+}