diff --git a/types/dot-object/index.d.ts b/types/dot-object/index.d.ts
index 55d8a5e98a..bd3c2a626d 100644
--- a/types/dot-object/index.d.ts
+++ b/types/dot-object/index.d.ts
@@ -1,4 +1,5 @@
 // Type definitions for Dot-Object 1.7
+// TypeScript Version: 2.2
 // Project: https://github.com/rhalff/dot-object
 // Definitions by: Niko Kovačič <https://github.com/nkovacic>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped