diff --git a/cpp/src/db/MemTable.cpp b/cpp/src/db/MemTable.cpp
index e05aa058ac..c88e7f1e04 100644
--- a/cpp/src/db/MemTable.cpp
+++ b/cpp/src/db/MemTable.cpp
@@ -1,7 +1,6 @@
 #include "MemTable.h"
 #include "Log.h"
 
-
 namespace zilliz {
 namespace milvus {
 namespace engine {