diff --git a/youtube_dl/extractor/mildom.py b/youtube_dl/extractor/mildom.py
index 20457eec2..45c67edb2 100644
--- a/youtube_dl/extractor/mildom.py
+++ b/youtube_dl/extractor/mildom.py
@@ -43,8 +43,8 @@ class MildomIE(InfoExtractor):
         thumbnail = playback_data.get('video_pic')
         if not thumbnail:
             thumbnail = self._html_search_meta(
-            'og:image',
-            webpage, 'thumbnail', default=None)
+                'og:image',
+                webpage, 'thumbnail', default=None)
 
         return {
             'id': video_id,