diff --git a/ng2-components/ng2-activiti-form/src/components/activiti-form.component.spec.ts b/ng2-components/ng2-activiti-form/src/components/activiti-form.component.spec.ts
index 8a2a2911cf..4571c1a6a4 100644
--- a/ng2-components/ng2-activiti-form/src/components/activiti-form.component.spec.ts
+++ b/ng2-components/ng2-activiti-form/src/components/activiti-form.component.spec.ts
@@ -40,7 +40,7 @@ describe('ActivitiForm', () => {
         ]);
         window['componentHandler'] = componentHandler;
 
-        formService = new FormService(null, null, null);
+        formService = new FormService(null);
         formComponent = new ActivitiForm(formService, visibilityService);
     });