diff --git a/proxy/plan/plan_delete.go b/proxy/plan/plan_delete.go
index 17835808..1413e283 100644
--- a/proxy/plan/plan_delete.go
+++ b/proxy/plan/plan_delete.go
@@ -53,7 +53,7 @@ func (p *DeletePlan) ExecuteIn(reqCtx *util.RequestContext, sess Executor) (*mys
 
 	rs, err := sess.ExecuteSQLs(reqCtx, sqls)
 	if err != nil {
-		return nil, fmt.Errorf("execute in UpdatePlan error: %v", err)
+		return nil, err
 	}
 
 	r, err := MergeExecResult(rs)
diff --git a/proxy/plan/plan_update.go b/proxy/plan/plan_update.go
index 86ca3277..d5a2dbee 100644
--- a/proxy/plan/plan_update.go
+++ b/proxy/plan/plan_update.go
@@ -53,7 +53,7 @@ func (s *UpdatePlan) ExecuteIn(reqCtx *util.RequestContext, sess Executor) (*mys
 
 	rs, err := sess.ExecuteSQLs(reqCtx, sqls)
 	if err != nil {
-		return nil, fmt.Errorf("execute in UpdatePlan error: %v", err)
+		return nil, err
 	}
 
 	r, err := MergeExecResult(rs)