diff --git a/src/ng/rootScope.js b/src/ng/rootScope.js
index 030e0b05c248..de1514853175 100644
--- a/src/ng/rootScope.js
+++ b/src/ng/rootScope.js
@@ -400,11 +400,7 @@ function $RootScopeProvider(){
 
         deregisterFns.push(self.$watch(watchGroupFn, function () {
           listener(newValues, oldValues, self);
-          if (unwatchCount === 0) {
-            watchGroupFn.$$unwatch = true;
-          } else {
-            watchGroupFn.$$unwatch = false;
-          }
+          watchGroupFn.$$unwatch = unwatchCount === 0 ? true : false;
         }));
 
         return function deregisterWatchGroup() {