diff options
| -rw-r--r-- | markdown/extensions/headerid.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/markdown/extensions/headerid.py b/markdown/extensions/headerid.py index b0e37e2..c99c4bd 100644 --- a/markdown/extensions/headerid.py +++ b/markdown/extensions/headerid.py @@ -97,7 +97,7 @@ def slugify(value, separator): def unique(id, ids): """ Ensure id is unique in set of ids. Append '_1', '_2'... if not """ - while id in ids: + while id in ids or not id: m = IDCOUNT_RE.match(id) if m: id = '%s_%d'% (m.group(1), int(m.group(2))+1) |