diff --git a/library/system/setup b/library/system/setup
index 7ede90c98d..e3279717a8 100755
--- a/library/system/setup
+++ b/library/system/setup
@@ -1440,7 +1440,7 @@ class LinuxNetwork(Network):
                     path = os.path.join(path, 'bonding', 'all_slaves_active')
                     if os.path.exists(path):
                         interfaces[device]['all_slaves_active'] = open(path).read() == '1'
-            #Check whether a interface is in promiscuous mode
+            # Check whether a interface is in promiscuous mode
             if os.path.exists(os.path.join(path,'flags')):
                 promisc_mode = False
                 # The second byte indicates whether the interface is in promiscuous mode.