diff --git a/src/fdb_tsdb.c b/src/fdb_tsdb.c
index 27c8444..9511bdf 100644
--- a/src/fdb_tsdb.c
+++ b/src/fdb_tsdb.c
@@ -1049,6 +1049,7 @@ fdb_err_t fdb_tsdb_init(fdb_tsdb_t db, const char *name, const char *path, fdb_g
     if (check_sec_arg.check_failed) {
         if (db->parent.not_formatable) {
             result = FDB_READ_ERR;
+			db_unlock(db);
             goto __exit;
         } else {
             tsl_format_all(db);
@@ -1117,4 +1118,4 @@ fdb_err_t fdb_tsdb_deinit(fdb_tsdb_t db)
     return FDB_NO_ERR;
 }
 
-#endif /* defined(FDB_USING_TSDB) */
\ No newline at end of file
+#endif /* defined(FDB_USING_TSDB) */