1 files changed, 1 insertions, 6 deletions
diff --git a/app/php/components/UserSelection.php b/app/php/components/UserSelection.php
index 92b8463..7b10b40 100644
--- a/app/php/components/UserSelection.php
+++ b/app/php/components/UserSelection.php
@@ -58,12 +58,7 @@ class UserSelection extends TTemplateControl {
                 },
                 $categories
             );
-            usort(
-                $categories,
-                function($cat1, $cat2) {
-                    return strcmp($cat1->Name, $cat2->Name);
-                }
-            );
+            usort($categories, ['CalendarGroupDTO', '__compare']);
             return $categories;
         }
         return [];