diff --git a/src/client/src/tscPrepare.c b/src/client/src/tscPrepare.c
index 2f1db5811754fb9e2aa2cdb1092366b0ae25b3b2..ef8ddfd211acbcf76ae2a9471d6aca8cc4a40c97 100644
--- a/src/client/src/tscPrepare.c
+++ b/src/client/src/tscPrepare.c
@@ -65,7 +65,6 @@ static int normalStmtAddPart(SNormalStmt* stmt, bool isParam, char* str, uint32_
     }
     stmt->sizeParts = size;
     stmt->parts = (SNormalStmtPart*)tmp;
-    free(tmp); 
   }
 
   stmt->parts[stmt->numParts].isParam = isParam;
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index cb73a6e9bd655c6f7352e4aa35c8b41e41db5fcb..ac2b958be7c460e60ab53a112a509674ae69dc2a 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -2927,7 +2927,6 @@ static SColumnFilterInfo* addColumnFilterInfo(SColumnBase* pColumn) {
   char*   tmp = realloc(pColumn->filterInfo, sizeof(SColumnFilterInfo) * (size));
   if (tmp != NULL) {
     pColumn->filterInfo = (SColumnFilterInfo*)tmp;
-    free(tmp); 
   }
 
   pColumn->numOfFilters++;