diff --git a/inc/fdb_def.h b/inc/fdb_def.h
index 8c2ab8b..0e67321 100644
--- a/inc/fdb_def.h
+++ b/inc/fdb_def.h
@@ -17,8 +17,8 @@ extern "C" {
 #endif
 
 /* software version number */
-#define FDB_SW_VERSION                 "1.1.0"
-#define FDB_SW_VERSION_NUM             0x10100
+#define FDB_SW_VERSION                 "1.1.1"
+#define FDB_SW_VERSION_NUM             0x10101
 
 /* the KV max name length must less then it */
 #ifndef FDB_KV_NAME_MAX
diff --git a/src/fdb_tsdb.c b/src/fdb_tsdb.c
index 5ae0853..0182e50 100644
--- a/src/fdb_tsdb.c
+++ b/src/fdb_tsdb.c
@@ -775,9 +775,12 @@ fdb_err_t fdb_tsdb_init(fdb_tsdb_t db, const char *name, const char *path, fdb_g
         if (check_sec_arg.empty_num > 0) {
             latest_addr = check_sec_arg.empty_addr;
         } else {
-            latest_addr = db->cur_sec.addr;
-            /* There is no empty sector. */
-            latest_addr = db->cur_sec.addr = db_max_size(db) - db_sec_size(db);
+            if (db->rollover) {
+                latest_addr = db->cur_sec.addr;
+            } else {
+                /* There is no empty sector. */
+                latest_addr = db->cur_sec.addr = db_max_size(db) - db_sec_size(db);
+            }
         }
         /* db->cur_sec is the latest sector, and the next is the oldest sector */
         if (latest_addr + db_sec_size(db) >= db_max_size(db)) {