diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 84aa6dfa39..3c4b9af04b 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -5579,6 +5579,7 @@ static int32_t doTranslateDropSuperTable(STranslateContext* pCxt, const SName* p
     tNameExtractFullName(pTableName, dropReq.name);
     dropReq.igNotExists = ignoreNotExists;
     code = buildCmdMsg(pCxt, TDMT_MND_DROP_STB, (FSerializeFunc)tSerializeSMDropStbReq, &dropReq);
+    tFreeSMDropStbReq(&dropReq);
   }
   return code;
 }