diff --git a/kallithea/config/routing.py b/kallithea/config/routing.py
--- a/kallithea/config/routing.py
+++ b/kallithea/config/routing.py
@@ -240,8 +240,8 @@ def make_map(config):
 
         m.connect("edit_user_group_perms", "/user_groups/{id}/edit/perms",
                   action="edit_perms", conditions=dict(method=["GET"]))
-        m.connect("edit_user_group_perms", "/user_groups/{id}/edit/perms",
-                  action="update_perms", conditions=dict(method=["PUT"]))
+        m.connect("edit_user_group_perms_update", "/user_groups/{id}/edit/perms",
+                  action="update_perms", conditions=dict(method=["POST"]))
         m.connect("edit_user_group_perms_delete", "/user_groups/{id}/edit/perms/delete",
                   action="delete_perms", conditions=dict(method=["POST"]))
 
diff --git a/kallithea/templates/admin/user_groups/user_group_edit_perms.html b/kallithea/templates/admin/user_groups/user_group_edit_perms.html
--- a/kallithea/templates/admin/user_groups/user_group_edit_perms.html
+++ b/kallithea/templates/admin/user_groups/user_group_edit_perms.html
@@ -1,4 +1,4 @@
-${h.form(url('edit_user_group_perms', id=c.user_group.users_group_id),method='put')}
+${h.form(url('edit_user_group_perms_update', id=c.user_group.users_group_id))}
 <div class="form">
    <div class="fields">
         <div class="field">