diff --git a/xen/common/vm_event.c b/xen/common/vm_event.c
index ecf49c38a9..fbf1aa0848 100644
--- a/xen/common/vm_event.c
+++ b/xen/common/vm_event.c
@@ -770,6 +770,7 @@ int vm_event_domctl(struct domain *d, struct xen_domctl_vm_event_op *vec)
 
     default:
         rc = -ENOSYS;
+        break;
     }
 
     return rc;