diff --git a/thefuck/rules/systemctl.py b/thefuck/rules/systemctl.py
index 6065abc..9bd791c 100644
--- a/thefuck/rules/systemctl.py
+++ b/thefuck/rules/systemctl.py
@@ -1,16 +1,21 @@
 """
-The confusion in systemctl's param order is massive
+The confusion in systemctl's param order is massive.
 """
 from thefuck.utils import sudo_support
 
+
 @sudo_support
 def match(command, settings):
-    #Catches 'Unknown operation 'service'.' when executing systemctl with misordered arguments
+    # Catches 'Unknown operation 'service'.' when executing systemctl with
+    # misordered arguments
     cmd = command.script.split()
-    return ('systemctl' in command.script) and ('Unknown operation \'' in command.stderr) and (len(cmd) - cmd.index('systemctl') == 3);
+    return ('systemctl' in command.script and
+            'Unknown operation \'' in command.stderr and
+            len(cmd) - cmd.index('systemctl') == 3)
+
 
 @sudo_support
 def get_new_command(command, settings):
     cmd = command.script.split()
-    cmd[len(cmd)-1], cmd[len(cmd)-2] = cmd[len(cmd)-2], cmd[len(cmd)-1]
+    cmd[-1], cmd[-2] = cmd[-2], cmd[-1]
     return ' '.join(cmd)