diff --git a/modules/angular2/test/symbol_inspector/symbol_inspector.ts b/modules/angular2/test/symbol_inspector/symbol_inspector.ts
index 0af922eb16..f4830e637c 100644
--- a/modules/angular2/test/symbol_inspector/symbol_inspector.ts
+++ b/modules/angular2/test/symbol_inspector/symbol_inspector.ts
@@ -14,7 +14,7 @@ const IGNORE =
       originalException: true,
       originalStack: true,
       wrapperMessage: true,
-      wrapperStack: true
+      wrapperStack: true, '@@observable': true
     }
 
 function collectClassSymbols(symbols: string[], prefix: String, type: Function):