diff --git a/sugar/sugar.d.ts b/sugar/sugar.d.ts
index b96d10bea..94ab0f365 100644
--- a/sugar/sugar.d.ts
+++ b/sugar/sugar.d.ts
@@ -4397,9 +4397,9 @@ interface Date {
 	*   });                                                      -> ex. 1 day ago
 	**/
 	format(format: string, locale?: string): string;
-	short(): string;
-	long(): string;
-	full(): string;
+    	short(locale?: string): string;
+    	long(locale?: string): string;
+    	full(locale?: string): string;
 
 	/**
 	* Returns a string representation of the offset from UTC time. If [iso]