diff --git a/underscore/underscore.d.ts b/underscore/underscore.d.ts
index 8f8e32d370..6d26dc9c02 100644
--- a/underscore/underscore.d.ts
+++ b/underscore/underscore.d.ts
@@ -3670,8 +3670,8 @@ interface UnderscoreStatic {
 	* @param predicate Predicate function.
 	* @param context `this` object in `iterator`, optional.
 	*/
-	findKey<T>(obj: _.Dictionary<T>, predicate: _.ObjectIterator<T, boolean>, context? : any): T
-
+	findKey<T>(obj: _.Dictionary<T>, predicate: _.ObjectIterator<T, boolean>, context? : any): string;
+	
 	/**
 	* Return a copy of the object, filtered to only have values for the whitelisted keys
 	* (or array of valid keys).