diff --git a/src/inc/taoserror.h b/src/inc/taoserror.h
index c1c0d2825371fb56f2b8337cb713378dda6ca20d..6012efa3595ac782e7a67c37ad7426b23204d0b1 100644
--- a/src/inc/taoserror.h
+++ b/src/inc/taoserror.h
@@ -194,7 +194,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_QRY_NO_DISKSPACE,             0, 0x0702, "query no d
 TAOS_DEFINE_ERROR(TSDB_CODE_QRY_OUT_OF_MEMORY,            0, 0x0703, "query out of memory")
 TAOS_DEFINE_ERROR(TSDB_CODE_QRY_APP_ERROR,                0, 0x0704, "query app error")
 
-// gran
+// grant
 TAOS_DEFINE_ERROR(TSDB_CODE_GRANT_EXPIRED,                0, 0x0800, "grant expired")
 TAOS_DEFINE_ERROR(TSDB_CODE_GRANT_DNODE_LIMITED,          0, 0x0801, "grant dnode limited")
 TAOS_DEFINE_ERROR(TSDB_CODE_GRANT_ACCT_LIMITED,           0, 0x0802, "grant account limited")
@@ -208,8 +208,11 @@ TAOS_DEFINE_ERROR(TSDB_CODE_GRANT_STORAGE_LIMITED,        0, 0x0809, "grant stor
 TAOS_DEFINE_ERROR(TSDB_CODE_GRANT_QUERYTIME_LIMITED,      0, 0x080A, "grant query time limited")
 TAOS_DEFINE_ERROR(TSDB_CODE_GRANT_CPU_LIMITED,            0, 0x080B, "grant cpu limited")
 
-// sync 0x1400
-TAOS_DEFINE_ERROR(TSDB_CODE_SYN_INVALID_CONFIG,           0, 0x1900, "sync invalid configuration")
+// sync
+TAOS_DEFINE_ERROR(TSDB_CODE_SYN_INVALID_CONFIG,           0, 0x0900, "sync invalid configuration")
+
+// wal
+TAOS_DEFINE_ERROR(TSDB_CODE_WAL_APP_ERROR,                0, 0x1000, "wal app error")
 
 #ifdef TAOS_ERROR_C
 };
diff --git a/src/wal/src/walMain.c b/src/wal/src/walMain.c
index d8f0d59afd9cd74ea58f0a4a6f6aaaf543aa28a3..09225984c480e7f7f77e7f544b5568c6fd62d620 100644
--- a/src/wal/src/walMain.c
+++ b/src/wal/src/walMain.c
@@ -240,7 +240,7 @@ int walRestore(void *handle, void *pVnode, int (*writeFp)(void *, void *, int))
 
   if ( count != (maxId-minId+1) ) {
     wError("wal:%s, messed up, count:%d max:%d min:%d", opath, count, maxId, minId);
-    terrno = TAOS_SYSTEM_ERROR(TSDB_CODE_APP_ERROR);
+    terrno = TSDB_CODE_WAL_APP_ERROR;
   } else {
     wTrace("wal:%s, %d files will be restored", opath, count);