diff --git a/source/libs/tfs/inc/tfsint1.h b/source/libs/tfs/inc/tfsInt.h
similarity index 98%
rename from source/libs/tfs/inc/tfsint1.h
rename to source/libs/tfs/inc/tfsInt.h
index caa52b5cd6..40eb61ba07 100644
--- a/source/libs/tfs/inc/tfsint1.h
+++ b/source/libs/tfs/inc/tfsInt.h
@@ -18,15 +18,13 @@
 
 #include "os.h"
 
+#include "taosdef.h"
 #include "taoserror.h"
-#include "tlog.h"
-#include "tglobal.h"
-#include "tfs.h"
 #include "tcoding.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
+#include "tfs.h"
+#include "tglobal.h"
+#include "thash.h"
+#include "tlog.h"
 
 extern int fsDebugFlag;
 
diff --git a/source/libs/tfs/src/tfs.c b/source/libs/tfs/src/tfs.c
index 88d6d587a7..a054981961 100644
--- a/source/libs/tfs/src/tfs.c
+++ b/source/libs/tfs/src/tfs.c
@@ -13,13 +13,8 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "os.h"
-
-#include "taosdef.h"
-#include "taoserror.h"
-#include "tfs.h"
-#include "tfsint.h"
-#include "thash.h"
+#define _DEFAULT_SOURCE
+#include "tfsInt.h"
 
 #define TMPNAME_LEN (TSDB_FILENAME_LEN * 2 + 32)
 
diff --git a/source/libs/tfs/src/tfsDisk.c b/source/libs/tfs/src/tfsDisk.c
index f32069837d..98656c84e6 100644
--- a/source/libs/tfs/src/tfsDisk.c
+++ b/source/libs/tfs/src/tfsDisk.c
@@ -14,7 +14,7 @@
  */
 
 #define _DEFAULT_SOURCE
-#include "tfsint.h"
+#include "tfsInt.h"
 
 SDisk *tfsNewDisk(int32_t level, int32_t id, const char *dir) {
   SDisk *pDisk = calloc(1, sizeof(SDisk));
diff --git a/source/libs/tfs/src/tfsTier.c b/source/libs/tfs/src/tfsTier.c
index 3b19797acf..90057e61d5 100644
--- a/source/libs/tfs/src/tfsTier.c
+++ b/source/libs/tfs/src/tfsTier.c
@@ -12,11 +12,9 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
-#include "os.h"
 
-#include "taosdef.h"
-#include "taoserror.h"
-#include "tfsint.h"
+#define _DEFAULT_SOURCE
+#include "tfsInt.h"
 
 #define tfsLockTier(pTier) pthread_spin_lock(&((pTier)->lock))
 #define tfsUnLockTier(pTier) pthread_spin_unlock(&((pTier)->lock))