diff --git a/pykolab/wap_client/__init__.py b/pykolab/wap_client/__init__.py
--- a/pykolab/wap_client/__init__.py
+++ b/pykolab/wap_client/__init__.py
@@ -450,7 +450,7 @@
         conn.set_debuglevel(9)
 
     if get is not None:
-        _get = "?%s" % (urllib.urlencode(get))
+        _get = "?%s" % (urlencode(get))
     else:
         _get = ""