1 files changed, 1 insertions, 1 deletions
diff --git a/src/Scope.js b/src/Scope.js
index 40192e16..75a33813 100644
--- a/src/Scope.js
+++ b/src/Scope.js
@@ -167,7 +167,7 @@ function createScope(parent, providers, instanceCache) {
 
     $watch: function(watchExp, listener, exceptionHandler) {
       var watch = expressionCompile(watchExp),
-          last;
+          last = {};
       listener = expressionCompile(listener);
       function watcher(){
         var value = watch.call(instance),