diff --git a/src/inc/taosmsg.h b/src/inc/taosmsg.h
index d8a052c161697746f2d7acce9597d663d9002211..24f3a84227e1fd1a6397e3462180231442a5c5b1 100644
--- a/src/inc/taosmsg.h
+++ b/src/inc/taosmsg.h
@@ -500,7 +500,7 @@ typedef struct {
 } SQueryTableMsg;
 
 typedef struct {
-  char     code;
+  int32_t  code;
   uint64_t qhandle;
 } SQueryTableRsp;