diff --git a/database/gdb/gdb_model_order_group.go b/database/gdb/gdb_model_order_group.go
index 4b1e5926de5..ec69818b6be 100644
--- a/database/gdb/gdb_model_order_group.go
+++ b/database/gdb/gdb_model_order_group.go
@@ -17,7 +17,6 @@ import (
 //
 // Eg:
 // Order("id desc")
-// Order("id", "desc").
 // Order("id desc,name asc")
 // Order("id desc").Order("name asc")
 // Order(gdb.Raw("field(id, 3,1,2)")).