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 caa52b5cd61d59b619685d578e4d5768826f787e..40eb61ba079853eea3b0a6a94f94f1f8b5a5d47f 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 88d6d587a7bf4aad447de76f0ee92d9cf4e1035b..a054981961be1ce1aa698c491d7d6c7f75933f30 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 f32069837de7660313c0ec0ae7d7a7585f5b9057..98656c84e61f39861b64bb66d255bb6becd62d22 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 3b19797acf67f36a31c30dccefc0c985512f510b..90057e61d5e8862a996a2e5147e01b86c26bd7e5 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))