diff --git a/mininet/util.py b/mininet/util.py
index cb61eb9..9437430 100644
--- a/mininet/util.py
+++ b/mininet/util.py
@@ -177,4 +177,4 @@ def makeNumeric( s ):
     elif checkFloat( s ):
         return float( s )
     else:
-        return s
\ No newline at end of file
+        return s