diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index f5c4d880072..5d585e2658a 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -5643,9 +5643,6 @@ namespace ts {
         }
 
         function parseImportEqualsDeclaration(fullStart: number, decorators: NodeArray<Decorator>, modifiers: NodeArray<Modifier>, identifier: ts.Identifier): ImportEqualsDeclaration {
-            // ImportEquals declaration of type:
-            // import x = require("mod"); or
-            // import x = M.x;
             const importEqualsDeclaration = <ImportEqualsDeclaration>createNode(SyntaxKind.ImportEqualsDeclaration, fullStart);
             importEqualsDeclaration.decorators = decorators;
             importEqualsDeclaration.modifiers = modifiers;
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index 7728c2b8519..a7adf28ac8e 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -1838,6 +1838,11 @@ namespace ts {
 
     export type ModuleReference = EntityName | ExternalModuleReference;
 
+    /**
+     * One of:
+     * - import x = require("mod");
+     * - import x = M.x;
+     */
     export interface ImportEqualsDeclaration extends DeclarationStatement {
         kind: SyntaxKind.ImportEqualsDeclaration;
         parent?: SourceFile | ModuleBlock;