diff --git a/htdocs/includes/modules/modTelephonie.class.php b/htdocs/includes/modules/modTelephonie.class.php
index 12251a34287..f26a63b9c6e 100644
--- a/htdocs/includes/modules/modTelephonie.class.php
+++ b/htdocs/includes/modules/modTelephonie.class.php
@@ -245,7 +245,7 @@ class modTelephonie extends DolibarrModules
     $this->rights[$r][2] = 'w';
     $this->rights[$r][3] = 0;
     $this->rights[$r][4] = 'tarif';
-    $this->rights[$r][5] = 'client-modifier';
+    $this->rights[$r][5] = 'client_modifier';
     $r++;