diff --git a/contrib/externs/jasmine-2.0.js b/contrib/externs/jasmine-2.0.js
index <HASH>..<HASH> 100644
--- a/contrib/externs/jasmine-2.0.js
+++ b/contrib/externs/jasmine-2.0.js
@@ -436,7 +436,7 @@ var DoneFunc;
 
 /** @type {DoneFunc} */
 var doneFuncInst_;
-/** @type {function()} */
+/** @type {function(?=)} */
 doneFuncInst_.fail;
 
 /**
Add support for parameters in Jasmine fail() invocations.

-------------
Created by MOE: <URL>