diff --git a/modules/angular2/test/core/compiler/shadow_css_spec.ts b/modules/angular2/test/core/compiler/shadow_css_spec.ts
index 4400617ceb..48588eb937 100644
--- a/modules/angular2/test/core/compiler/shadow_css_spec.ts
+++ b/modules/angular2/test/core/compiler/shadow_css_spec.ts
@@ -164,5 +164,11 @@ export function main() {
         expect(css).toEqual(styleStr);
       });
     }
+
+    it('should leave calc() unchanged', () => {
+      var styleStr = 'a {height:calc(100% - 55px);}';
+      var css = s(styleStr, 'a');
+      expect(css).toEqual(styleStr);
+    });
   });
 }