diff --git a/authzgroups.php b/authzgroups.php
index 4781e87..cab578c 100644
--- a/authzgroups.php
+++ b/authzgroups.php
@@ -472,7 +472,7 @@ class authzgroups
     case "RO": $newright=1;break;
     default:
       throw new Exception (dgettext ("domframework",
-                                     "Unknown right provided (RO/RW only"),
+                                     "Unknown right provided (RO/RW only)"),
                            500);
     }
     $idrights = $this->rightRead ($module, $group, $object);