diff --git a/jquery/jquery.d.ts b/jquery/jquery.d.ts
index 1513959a84..c175d25f55 100644
--- a/jquery/jquery.d.ts
+++ b/jquery/jquery.d.ts
@@ -86,7 +86,7 @@ interface JQueryPromise {
     done(...doneCallbacks: any[]): JQueryDeferred;
     fail(...failCallbacks: any[]): JQueryDeferred;
     pipe(doneFilter?: (x: any) => any, failFilter?: (x: any) => any, progressFilter?: (x: any) => any): JQueryPromise;
-    then(doneCallbacks: any, failCallbacks: any, progressCallbacks?: any): JQueryDeferred;
+    then(doneCallbacks: any, failCallbacks?: any, progressCallbacks?: any): JQueryDeferred;
 }
 
 /*