diff --git a/webant/agherant.py b/webant/agherant.py
index 870a3c9..5d0556a 100644
--- a/webant/agherant.py
+++ b/webant/agherant.py
@@ -47,7 +47,7 @@ def autoreplace(description_url):
                           map(autoreplace, descriptions))
     clients = []
     for url in descriptions:
-        log.debug("Fetching description %s")
+        log.debug("Fetching description {}".format(url))
         try:
             clients.append(Client(url))
         except: