diff --git a/angularjs/angular.d.ts b/angularjs/angular.d.ts
index c5e45258d2..6060e19fdc 100755
--- a/angularjs/angular.d.ts
+++ b/angularjs/angular.d.ts
@@ -351,6 +351,7 @@ declare module ng {
     ///////////////////////////////////////////////////////////////////////////
     // LogService
     // see http://docs.angularjs.org/api/ng.$log
+    // see http://docs.angularjs.org/api/ng.$logProvider
     ///////////////////////////////////////////////////////////////////////////
     interface ILogService {
         debug: ILogCall;
@@ -360,6 +361,11 @@ declare module ng {
         warn: ILogCall;
     }
 
+    interface ILogProvider {
+        debugEnabled(enabled: boolean): ILogProvider;
+        debugEnabled(): boolean;
+    }
+
     // We define this as separete interface so we can reopen it later for
     // the ngMock module.
     interface ILogCall {