diff --git a/business/partner/delivery/mtps/waybill.go b/business/partner/delivery/mtps/waybill.go
index 9ca35c69c..a602fcfa8 100644
--- a/business/partner/delivery/mtps/waybill.go
+++ b/business/partner/delivery/mtps/waybill.go
@@ -133,7 +133,7 @@ func (c *DeliveryHandler) pushToGy(msg *mtpsapi.CallbackOrderMsg) {
 		if err != nil {
 			return
 		}
-		request.Header.Set("content_type", "application/x-www-form-urlencoded; charset=UTF-8")
+		request.Header.Set("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8")
 		cl.Do(request)
 	}
 }