diff --git a/src/client/src/tscAst.c b/src/client/src/tscAst.c
index 78948cabdcaeec463bf2c8dd9d637e19bf500e87..ef360ab5ef768697fa112b98248c881a5f1d3b2f 100644
--- a/src/client/src/tscAst.c
+++ b/src/client/src/tscAst.c
@@ -326,7 +326,7 @@ static tSQLSyntaxNode *createSyntaxTree(SSchema *pSchema, int32_t numOfCols, cha
     uint8_t localOptr = getBinaryExprOptr(&t0); 
     if (localOptr == 0) {
       pError("not support binary operator:%d", t0.type);
-      free(pBinExpr)
+      free(pBinExpr);
       return NULL;
     }
 
@@ -936,4 +936,4 @@ void tQueryResultClean(tQueryResultset *pRes) {
 
   tfree(pRes->pRes);
   pRes->num = 0;
-}
\ No newline at end of file
+}