diff --git a/source/libs/sync/inc/syncInt.h b/source/libs/sync/inc/syncInt.h
index 0b653ddbe9..2ff890da56 100644
--- a/source/libs/sync/inc/syncInt.h
+++ b/source/libs/sync/inc/syncInt.h
@@ -21,7 +21,7 @@ extern "C" {
 #endif
 
 #include "sync.h"
-#include "tglobal.h"
+#include "tdef.h"
 #include "trpc.h"
 #include "ttimer.h"
 
diff --git a/source/libs/sync/src/syncPipeline.c b/source/libs/sync/src/syncPipeline.c
index 5eac01b884..c891db07c6 100644
--- a/source/libs/sync/src/syncPipeline.c
+++ b/source/libs/sync/src/syncPipeline.c
@@ -27,8 +27,9 @@
 #include "syncSnapshot.h"
 #include "syncUtil.h"
 #include "syncVoteMgr.h"
+#include "tglobal.h"
 
-int64_t tsLogBufferMemoryUsed = 0;  // total bytes of vnode log buffer
+static int64_t tsLogBufferMemoryUsed = 0;  // total bytes of vnode log buffer
 
 static bool syncIsMsgBlock(tmsg_t type) {
   return (type == TDMT_VND_CREATE_TABLE) || (type == TDMT_VND_ALTER_TABLE) || (type == TDMT_VND_DROP_TABLE) ||