diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 859cfe4782fcf898479e45ed37918e65ced968da..578a7df1493b23792791a29bf0acf43c6e38b719 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -2721,7 +2721,11 @@ STableMeta* createSuperTableMeta(STableMetaMsg* pChild) {
 uint32_t tscGetTableMetaSize(STableMeta* pTableMeta) {
   assert(pTableMeta != NULL);
 
-  int32_t totalCols = pTableMeta->tableInfo.numOfColumns + pTableMeta->tableInfo.numOfTags;
+  int32_t totalCols = 0;
+  if (pTableMeta->tableInfo.numOfColumns >= 0 && pTableMeta->tableInfo.numOfTags >= 0) {
+    totalCols = pTableMeta->tableInfo.numOfColumns + pTableMeta->tableInfo.numOfTags;
+  }
+  
   return sizeof(STableMeta) + totalCols * sizeof(SSchema);
 }