diff --git a/src/mega/crypto.py b/src/mega/crypto.py
index 9d87476..1ca6752 100644
--- a/src/mega/crypto.py
+++ b/src/mega/crypto.py
@@ -6,7 +6,7 @@ import binascii
 import random
 import sys
 
-### Python3 compatibility
+# Python3 compatibility
 if sys.version_info < (3, ):
 
     def makebyte(x):
diff --git a/src/mega/mega.py b/src/mega/mega.py
index eb38599..38df858 100644
--- a/src/mega/mega.py
+++ b/src/mega/mega.py
@@ -59,7 +59,8 @@ class Mega(object):
                 a32_to_base64(encrypt_key(master_key, password_key)),
                 'ts':
                 base64_url_encode(
-                    a32_to_str(session_self_challenge) + a32_to_str(encrypt_key(session_self_challenge, master_key))
+                    a32_to_str(session_self_challenge) +
+                    a32_to_str(encrypt_key(session_self_challenge, master_key))
                 )
             }
         )