diff --git a/projects/angular-formio/src/formio.common.ts b/projects/angular-formio/src/formio.common.ts
index 99edd233..85d5b8f3 100644
--- a/projects/angular-formio/src/formio.common.ts
+++ b/projects/angular-formio/src/formio.common.ts
@@ -27,6 +27,7 @@ export interface FormioReport {
 }
 
 export interface FormioForm {
+  _id?: string;
   title?: string;
   display?: string;
   name?: string;