diff --git a/xCAT-server/lib/xcat/plugins/hosts.pm b/xCAT-server/lib/xcat/plugins/hosts.pm
index 6853146bd..1eb234ab6 100755
--- a/xCAT-server/lib/xcat/plugins/hosts.pm
+++ b/xCAT-server/lib/xcat/plugins/hosts.pm
@@ -165,7 +165,7 @@ sub build_line
         $longname  = "$node.$domain";
     }
 
-    # if shortname contains a dot then we have a bad syntax for name 
+    # if shortname contains a dot then we have a bad syntax for name
     if ($shortname =~ /\./) {
         my $rsp;
         push @{ $rsp->{data} }, "Invalid short node name \'$shortname\'. The short node name may not contain a dot. The short node name is considered to be anything preceeding the network domain name in the fully qualified node name \'$longname\'.\n";
@@ -201,7 +201,7 @@ sub addotherinterfaces
             {
                 $itf = $node . $itf;
             }
-            
+
             #lookup the domain for the ip address
             #if failed, use the domain passed in
             my ($mydomain,$mynet)=getIPdomain($ip);
@@ -573,7 +573,7 @@ sub writeout
 
 =head3    donics
 
-           Add the additional network interfaces for a list of nodes as 
+           Add the additional network interfaces for a list of nodes as
            indicated in the nics table
 
         Arguments: