diff --git a/src/app/testing/mock.component.ts b/src/app/testing/mock.component.ts
index 01f1d22..71b8628 100644
--- a/src/app/testing/mock.component.ts
+++ b/src/app/testing/mock.component.ts
@@ -7,5 +7,5 @@
     inputs: options.inputs,
     outputs: options.outputs,
   };
-  return Component(metadata)(class _ {});
+  return Component(metadata)(<any>class _ {});
 }