diff --git a/youtube_dl/extractor/lynda.py b/youtube_dl/extractor/lynda.py
index 7d78a88059..3d7e7e003e 100644
--- a/youtube_dl/extractor/lynda.py
+++ b/youtube_dl/extractor/lynda.py
@@ -25,7 +25,7 @@ class LyndaBaseIE(InfoExtractor):
         self._login()
 
     def _login(self):
-        (username, password) = self._get_login_info()
+        username, password = self._get_login_info()
         if username is None:
             return