diff --git a/youtube_dl/extractor/xtube.py b/youtube_dl/extractor/xtube.py
index 47caec1de..01b253dcb 100644
--- a/youtube_dl/extractor/xtube.py
+++ b/youtube_dl/extractor/xtube.py
@@ -98,9 +98,9 @@ class XTubeIE(InfoExtractor):
                 title = config.get('title')
                 thumbnail = config.get('poster')
                 duration = int_or_none(config.get('duration'))
-                sources = config.get('sources')
+                sources = config.get('sources') or config.get('format')
 
-        if isinstance(sources, dict):
+        if not isinstance(sources, dict):
             sources = self._parse_json(self._search_regex(
                 r'(["\'])?sources\1?\s*:\s*(?P<sources>{.+?}),',
                 webpage, 'sources', group='sources'), video_id,