diff --git a/OpenSSL/rand.py b/OpenSSL/rand.py
index 3adf693..27d9f7e 100644
--- a/OpenSSL/rand.py
+++ b/OpenSSL/rand.py
@@ -26,6 +26,7 @@
 
 _builtin_bytes = bytes
 
+
 def bytes(num_bytes):
     """
     Get some random bytes as a string.