diff --git a/weed/pb/grpc_client_server.go b/weed/pb/grpc_client_server.go
index 341718ae4..c7a47a91c 100644
--- a/weed/pb/grpc_client_server.go
+++ b/weed/pb/grpc_client_server.go
@@ -127,7 +127,7 @@ func hostAndPort(address string) (host string, port uint64, err error) {
 	}
 	port, err = strconv.ParseUint(address[colonIndex+1:], 10, 64)
 	if err != nil {
-		return "", 0,  fmt.Errorf("server port parse error: %v", err)
+		return "", 0, fmt.Errorf("server port parse error: %v", err)
 	}
 
 	return address[:colonIndex], port, err