diff --git a/publ/markdown.py b/publ/markdown.py
index 65866e6b..b8bcc586 100644
--- a/publ/markdown.py
+++ b/publ/markdown.py
@@ -84,8 +84,8 @@ def image(self, raw_url, title='', alt=''):
                      container_args.get('div_style')):
             text = '{tag}{text}</div>'.format(
                 tag=utils.make_tag('div',
-                                   {'class': container_args.get('div_class'),
-                                    'style': container_args.get('div_style')}),
+                                   {'class': container_args.get('div_class') or False,
+                                    'style': container_args.get('div_style') or False}),
                 text=text)
 
         # if text is ''/falsy then misaka interprets this as a failed parse...