diff --git a/youtube_dl/extractor/viddler.py b/youtube_dl/extractor/viddler.py
index ef104dc29c..8516a2940c 100644
--- a/youtube_dl/extractor/viddler.py
+++ b/youtube_dl/extractor/viddler.py
@@ -6,7 +6,7 @@
     int_or_none,
 )
 from ..compat import (
-   compat_urllib_request
+    compat_urllib_request
 )