diff --git a/src/controllers/GroupsController.ts b/src/controllers/GroupsController.ts
index ad8e0a4..d9aac65 100644
--- a/src/controllers/GroupsController.ts
+++ b/src/controllers/GroupsController.ts
@@ -392,7 +392,8 @@ export class GroupsController {
 		// Delete membership of the user
 		await GroupsHelper.DeleteMember(groupID, h.getUserId());
 
-		// TODO : delete any potential notificaton
+		// Delete any potential notificaton
+		await NotificationsHelper.DeleteNotificationsGroupsMembership(h.getUserId(), groupID);
 
 		h.success("The request has been successfully cancelled!");
 	}