diff --git a/internal/core/src/log/Log.cpp b/internal/core/src/log/Log.cpp
index 61b949e1ed..733216ecf8 100644
--- a/internal/core/src/log/Log.cpp
+++ b/internal/core/src/log/Log.cpp
@@ -19,7 +19,7 @@ INITIALIZE_EASYLOGGINGPP
 #include <stdexcept>
 #include <string>
 
-namespace milvus {
+// namespace milvus {
 
 std::string
 LogOut(const char* pattern, ...) {
@@ -105,4 +105,4 @@ get_thread_start_timestamp() {
     }
 }
 
-}  // namespace milvus
+// }  // namespace milvus
diff --git a/internal/core/src/log/Log.h b/internal/core/src/log/Log.h
index e8e1f5d63b..3eba82631e 100644
--- a/internal/core/src/log/Log.h
+++ b/internal/core/src/log/Log.h
@@ -16,7 +16,7 @@
 #include <unistd.h>
 #include "easyloggingpp/easylogging++.h"
 
-namespace milvus {
+// namespace milvus {
 
 #if __GLIBC__ == 2 && __GLIBC_MINOR__ < 30
 #include <sys/syscall.h>
@@ -133,4 +133,4 @@ GetThreadName();
 int64_t
 get_thread_start_timestamp();
 
-}  // namespace milvus
+// }  // namespace milvus