diff --git a/youtube_dl/extractor/nbc.py b/youtube_dl/extractor/nbc.py
index 7ae66616a..f840f6532 100644
--- a/youtube_dl/extractor/nbc.py
+++ b/youtube_dl/extractor/nbc.py
@@ -134,7 +134,7 @@ def _real_extract(self, url):
                         continue
                     raise
 
-                if not all_videos or not 'videos' in all_videos:
+                if not all_videos or 'videos' not in all_videos:
                     continue
 
                 try: