diff --git a/types/debug/index.d.ts b/types/debug/index.d.ts
index e8cfac264b..ad37e702a0 100644
--- a/types/debug/index.d.ts
+++ b/types/debug/index.d.ts
@@ -1,9 +1,10 @@
-// Type definitions for debug
+// Type definitions for debug 4.1
 // Project: https://github.com/visionmedia/debug
 // Definitions by: Seon-Wook Park <https://github.com/swook>
 //                 Gal Talmor <https://github.com/galtalmor>
 //                 John McLaughlin <https://github.com/zamb3zi>
 //                 Brasten Sager <https://github.com/brasten>
+//                 Nicolas Penin <https://github.com/npenin>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 declare var debug: debug.IDebug & {debug: debug.IDebug, default: debug.IDebug};