diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index cc177730c8e..86d011633da 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -605,6 +605,7 @@ namespace ts {
 
     export interface Declaration extends Node {
         _declarationBrand: any;
+        name?: DeclarationName;
     }
 
     export interface NamedDeclaration extends Declaration {