diff --git a/xCAT-test/autotest/confsamples/ubuntuxmn.conf b/xCAT-test/autotest/confsamples/ubuntuxmn.conf
index 368bfed65..47e624f6f 100644
--- a/xCAT-test/autotest/confsamples/ubuntuxmn.conf
+++ b/xCAT-test/autotest/confsamples/ubuntuxmn.conf
@@ -20,7 +20,7 @@ Name=c910f04x27v09
     arch=x86_64
     cons=kvm
     groups=all
-mac=42:bf:39:9e:f6:5f    
+mac=42:bf:39:9e:f6:5f
 mgt=kvm
     netboot=xnba
     serialflow=hard
@@ -40,7 +40,7 @@ SNOS=ubuntu14.04.1        #####
 ISO=/ubuntu-14.04.1-server-amd64.iso   ######
 NETBOOTDIR=/opt/xcat/share/xcat/netboot/ubuntu       #path of netboot directory, used by diskless installation
 SECONDNIC=eth2
-THIRDNIC=eth3 
+THIRDNIC=eth3
 INSTALLNICIP="10.4.27.9"
 GATEWAY=10.0.0.103