diff --git a/types/angular-animate/index.d.ts b/types/angular-animate/index.d.ts
index b9ba7e425b..0ce96a2f2f 100644
--- a/types/angular-animate/index.d.ts
+++ b/types/angular-animate/index.d.ts
@@ -2,6 +2,7 @@
 // Project: http://angularjs.org
 // Definitions by: Michel Salib <https://github.com/michelsalib>, Adi Dahiya <https://github.com/adidahiya>, Raphael Schweizer <https://github.com/rasch>, Cody Schaaf <https://github.com/codyschaaf>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.1
 
 declare var _: string;
 export = _;