diff --git a/src/system/detail/src/vnodeRead.c b/src/system/detail/src/vnodeRead.c
index d7b63119c68d2ad675e1ed54e13747dfdd4f96b5..92847ad8bd74769faa578a707eda6660cd4ab141 100644
--- a/src/system/detail/src/vnodeRead.c
+++ b/src/system/detail/src/vnodeRead.c
@@ -702,6 +702,7 @@ void *vnodeQueryOnSingleTable(SMeterObj **pMetersObj, SSqlGroupbyExpr *pGroupbyE
 _error:
   // table query ref will be decrease during error handling
   vnodeFreeQInfo(pQInfo, false);
+  free(pSupporter);
   return NULL;
 }