diff --git a/frontend/src/services/userManagementService.ts b/frontend/src/services/userManagementService.ts
index 06818df05..656cc493b 100644
--- a/frontend/src/services/userManagementService.ts
+++ b/frontend/src/services/userManagementService.ts
@@ -63,7 +63,7 @@ export interface InviteUsersResponse {
 }
 
 export interface InviteLinkRequest {
-  email: string;
+  email?: string;
   role: string;
   teamId?: number;
   expiryHours?: number;