diff --git a/polynum_blackboard/ws.py b/polynum_blackboard/ws.py
index bfb58c7..5f65627 100644
--- a/polynum_blackboard/ws.py
+++ b/polynum_blackboard/ws.py
@@ -51,8 +51,9 @@ class BlackboardConnector(object):
             try:
                 x = etree.XML(r.content.replace('ISO-8859-1', 'UTF-8'))
             except PARSE_ERRORS:
-                logger.exception('XML Parsing error request to %s', r.url)
-                return False, 'Erreur BlackBoard'
+                msg = 'MyCourse response: XML Parsing error request to %s' % r.url
+                logger.exception(msg)
+                return False, msg
             info_message_elt = x.find('infoMessage')
             course_elts = x.findall('*/course')
             courses = []
@@ -149,8 +150,9 @@ class BlackboardConnector(object):
             try:
                 x = etree.XML(r.content.replace('ISO-8859-1', 'UTF-8'))
             except PARSE_ERRORS:
-                logger.exception('XML Parsing error request to %s', r.url)
-                return False, 'Erreur BlackBoard'
+                msg = 'MyCourse response: XML Parsing error request to %s' % r.url
+                logger.exception(msg)
+                return False, msg
             info_message_elt = x.find('infoMessage')
             category_elts = x.findall('categories/category')
             categories = []