diff --git a/image_creator/os_type/unix.py b/image_creator/os_type/unix.py
index 478574b8b6d53d567aff44231823f61152327798..655fd495b54d1138e9e6cc52acae159930dc636d 100644
--- a/image_creator/os_type/unix.py
+++ b/image_creator/os_type/unix.py
@@ -107,7 +107,7 @@ class Unix(OSBase):
                 group.append(':'.join(fields))
 
         self.g.write('/etc/group', '\n'.join(group) + '\n')
-        
+
         # Remove home directories
         for home in [field[5] for field in removed_users.values()]:
             if self.g.is_dir(home) and home.startswith('/home/'):