diff --git a/knockout.mapping/knockout.mapping.d.ts b/knockout.mapping/knockout.mapping.d.ts
index cc116096d3..e8ffc807ee 100644
--- a/knockout.mapping/knockout.mapping.d.ts
+++ b/knockout.mapping/knockout.mapping.d.ts
@@ -48,5 +48,6 @@ interface KnockoutStatic {
 }
 
 declare module "knockout.mapping" {
-    export = KnockoutMapping;
+    export = mapping;
 }
+declare var mapping: KnockoutMapping;