diff --git a/cps/web.py b/cps/web.py
index 34cfe90b..3b337e7e 100644
--- a/cps/web.py
+++ b/cps/web.py
@@ -314,7 +314,7 @@ def import_ldap_users():
     try:
         new_users = services.ldap.get_group_members(config.config_ldap_group_name)
     except (services.ldap.LDAPException, TypeError, AttributeError, KeyError) as e:
-        log.debug(e)
+        log.exception(e)
         showtext['text'] = _(u'Error: %(ldaperror)s', ldaperror=e)
         return json.dumps(showtext)
     if not new_users: