diff --git a/source/libs/function/src/builtinsimpl.c b/source/libs/function/src/builtinsimpl.c
index 9986af1691ca4ddb2a3d58fad7d28013decae66a..9631aa76bb313b56a63cb4c6fc29e9316ecfab8f 100644
--- a/source/libs/function/src/builtinsimpl.c
+++ b/source/libs/function/src/builtinsimpl.c
@@ -5438,8 +5438,6 @@ int32_t blockDistFunction(SqlFunctionCtx* pCtx) {
   if (pDistInfo->maxRows < p1.maxRows) {
     pDistInfo->maxRows = p1.maxRows;
   }
-  pDistInfo->numOfVgroups += (p1.numOfTables != 0 ? 1 : 0);
-
   pDistInfo->numOfVgroups += (p1.numOfTables != 0 ? 1 : 0);
   for (int32_t i = 0; i < tListLen(pDistInfo->blockRowsHisto); ++i) {
     pDistInfo->blockRowsHisto[i] += p1.blockRowsHisto[i];