diff --git a/actions/usergroups.php b/actions/usergroups.php
index 5042261432..97faabae65 100644
--- a/actions/usergroups.php
+++ b/actions/usergroups.php
@@ -59,9 +59,9 @@ class UsergroupsAction extends OwnerDesignAction
     function title()
     {
         if ($this->page == 1) {
-            return sprintf(_("%s groups"), $this->user->nickname);
+            return sprintf(_('%s groups'), $this->user->nickname);
         } else {
-            return sprintf(_("%1$s groups, page %2$d"),
+            return sprintf(_('%1$s groups, page %2$d'),
                            $this->user->nickname,
                            $this->page);
         }