diff --git a/ng2-components/ng2-activiti-form/src/components/widgets/core/form-field.model.ts b/ng2-components/ng2-activiti-form/src/components/widgets/core/form-field.model.ts
index c3c65df077..1040f5b477 100644
--- a/ng2-components/ng2-activiti-form/src/components/widgets/core/form-field.model.ts
+++ b/ng2-components/ng2-activiti-form/src/components/widgets/core/form-field.model.ts
@@ -106,8 +106,8 @@ export class FormFieldModel extends FormWidgetModel {
     }
 
     set readOnly(readOnly: boolean) {
-        return this._readOnly = readOnly;
         this.updateForm();
+        this._readOnly = readOnly;
     }
 
     get isValid(): boolean {