diff --git a/attributs.py b/attributs.py
index 4bd5aaa..8c48623 100644
--- a/attributs.py
+++ b/attributs.py
@@ -416,7 +416,7 @@ class responsable(Attr):
     legend = u"Responsable du club"
 
     def parse_value(self, resp, ldif):
-        self.value = self.conn.search('aid=%d' % self.value)[0]
+        self.value = self.conn.search('aid=%s' % resp)[0]
 
     def __unicode__(self):
         return self.value.attrs['aid'][0]