diff --git a/doc-publik/update-publik-doc-from-mallard.py b/doc-publik/update-publik-doc-from-mallard.py
index 1ddfac8..2d9eff4 100644
--- a/doc-publik/update-publik-doc-from-mallard.py
+++ b/doc-publik/update-publik-doc-from-mallard.py
@@ -32,6 +32,7 @@ for cell in TextCell.objects.filter(slug__startswith='mallard-'):
         for img in document.find_all('img'):
             img.attrs['src'] = 'https://doc.entrouvert.org/%s/dev/%s' % (module, img.attrs['src'])
 
-        new_content = unicode(content).replace(unicode(more_info), '')
-        cell.text = new_content
-        cell.save()
+        if more_info:
+            new_content = content.decode().replace(more_info.decode(), '')
+            cell.text = new_content
+            cell.save()