diff --git a/vdirsyncer/utils/vobject.py b/vdirsyncer/utils/vobject.py
index fd63657..17106a4 100644
--- a/vdirsyncer/utils/vobject.py
+++ b/vdirsyncer/utils/vobject.py
@@ -175,7 +175,7 @@ def to_unicode_lines(item):
     for content_line in content_lines:
         if content_line:
             # https://github.com/untitaker/vdirsyncer/issues/70
-            # icalendar escapes semicolons which are not supposed to get
+            # XXX: icalendar escapes semicolons which are not supposed to get
             # escaped, because it is not aware of vcard
             content_line = content_line.replace(u'\\;', u';')
             yield icalendar.parser.foldline(content_line)