diff --git a/mininet/moduledeps.py b/mininet/moduledeps.py
index b72bac3..2e154b1 100644
--- a/mininet/moduledeps.py
+++ b/mininet/moduledeps.py
@@ -47,7 +47,7 @@ def moduleDeps( subtract=None, add=None ):
             info( '*** Loading ' + mod + '\n' )
             modprobeOutput = modprobe( mod )
             if modprobeOutput:
-                error( 'Error inserting ' + mod + 
+                error( 'Error inserting ' + mod +
                 ' - is it installed and available via modprobe?\n' +
                 'Error was: "%s"\n' % modprobeOutput )
             if mod not in lsmod():
@@ -62,6 +62,6 @@ def pathCheck( *args, **kwargs ):
     for arg in args:
         if not quietRun( 'which ' + arg ):
             error( 'Cannot find required executable %s.\n' % arg +
-                'Please make sure that %s is installed ' % moduleName + 
+                'Please make sure that %s is installed ' % moduleName +
                 'and available in your $PATH:\n(%s)\n' % environ[ 'PATH' ] )
             exit( 1 )