diff --git a/extensions/webmail/fetch_parser.py b/extensions/webmail/fetch_parser.py
index d5f5ecad7..73adc78e0 100644
--- a/extensions/webmail/fetch_parser.py
+++ b/extensions/webmail/fetch_parser.py
@@ -104,6 +104,7 @@ def parse_fetch_response(data):
         while cpt < len(data) and data[cpt] != ')':
             if type(data[cpt]) == str:
                 # FIXME : probably an unsolicited response
+                cpt += 1
                 continue
             content += data[cpt]
             cpt += 1