diff --git a/auth/group.go b/auth/group.go
index 2cc77e6..0abd336 100644
--- a/auth/group.go
+++ b/auth/group.go
@@ -40,3 +40,9 @@ var BeforeGroupUpdate func(*Group) error = func(g *Group) error { return nil }
 func (grp *Group) BeforeUpdate(tx *gorm.DB) (err error) {
 	return BeforeGroupUpdate(grp)
 }
+
+var BeforeGroupDelete func(*Group) error = func(g *Group) error { return nil }
+
+func (grp *Group) BeforeDelete(tx *gorm.DB) (err error) {
+	return BeforeGroupDelete(grp)
+}