diff --git a/youtube_dl/compat.py b/youtube_dl/compat.py
index a3e85264a..8ab688001 100644
--- a/youtube_dl/compat.py
+++ b/youtube_dl/compat.py
@@ -433,7 +433,7 @@ def compat_getpass(prompt, *args, **kwargs):
 else:
     compat_getpass = getpass.getpass
 
-# Old 2.6 and 2.7 releases require kwargs to be bytes
+# Python < 2.6.5 require kwargs to be bytes
 try:
     def _testfunc(x):
         pass