1 files changed, 2 insertions, 1 deletions
diff --git a/test/CompilerSpec.js b/test/CompilerSpec.js
index 780fd7cb..fa63ab77 100644
--- a/test/CompilerSpec.js
+++ b/test/CompilerSpec.js
@@ -14,7 +14,8 @@ describe('compiler', function(){
       watch: function(expression, element){
         return function() {
           this.$watch(expression, function(val){
-            log += ":" + val;
+            if (val)
+              log += ":" + val;
           });
         };
       }