diff --git a/sandbox/runtime_client.go b/sandbox/runtime_client.go
index cab8f42d8b7fd4fadaaa56a76ae179b2a1a74bdc..15ffb0870a7197e5ef9fe1602bf087e853a922c0 100644
--- a/sandbox/runtime_client.go
+++ b/sandbox/runtime_client.go
@@ -100,7 +100,6 @@ func (r *RuntimeClient) recvRoutine() error {
 					r.logger.Warnf("failed to end syscall, %v", err)
 				}
 				r.responseNotify(receivedMsg)
-				r.responseNotify = nil
 
 			default:
 				r.logger.Errorf("unknown message type, received msg: [%v]", receivedMsg)