diff --git a/Attrap_pref38.py b/Attrap_pref38.py
index d2110c933c5cac090287d2166c396ff621859f6e..b040921c46314c8c4a78ff9078a11c1352149ea7 100644
--- a/Attrap_pref38.py
+++ b/Attrap_pref38.py
@@ -20,7 +20,7 @@ class Attrap_pref38(Attrap_prefdpt):
     Attrap_prefdpt.select_widgets.append(
         Attrap_prefdpt.DptSelectWidget(
             'menu_deroulant',
-            regex='.*([0-9]*(?:er|ER)? [A-Za-zéÉûÛ]* [0-9]*)',
+            regex='([0-9]{1,2}[er]{0,1} [a-zéû]* [0-9]{4})',
             css_path='select#-liste-docs'
         )
     )