diff --git a/xCAT-server-2.0/lib/xcat/plugins/centos.pm b/xCAT-server-2.0/lib/xcat/plugins/centos.pm
index 3c5b0ecf9..7f335e86b 100644
--- a/xCAT-server-2.0/lib/xcat/plugins/centos.pm
+++ b/xCAT-server-2.0/lib/xcat/plugins/centos.pm
@@ -107,7 +107,7 @@ sub mknetboot {
         my $ient = $restab->getNodeAttribs($node,['servicenode']);
         my $ipfn = xCAT::Utils->my_ip_facing($node);
         if ($ient and $ient->{servicenode}) { #Servicenode attribute overrides
-           $imgsrv = $ient=>{servicenode};
+           $imgsrv = $ient->{servicenode};
         } elsif ($ipfn) {
            $imgsrv = $ipfn; #guessing self is second best
         } # resort to master value in site table only if not local to node...
diff --git a/xCAT-server-2.0/lib/xcat/plugins/rhel.pm b/xCAT-server-2.0/lib/xcat/plugins/rhel.pm
index 07e5c8c3a..16d6b70f3 100644
--- a/xCAT-server-2.0/lib/xcat/plugins/rhel.pm
+++ b/xCAT-server-2.0/lib/xcat/plugins/rhel.pm
@@ -100,7 +100,7 @@ sub mknetboot {
         my $ient = $restab->getNodeAttribs($node,['servicenode']);
         my $ipfn = xCAT::Utils->my_ip_facing($node);
         if ($ient and $ient->{servicenode}) { #Servicenode attribute overrides
-           $imgsrv = $ient=>{servicenode};
+           $imgsrv = $ient->{servicenode};
         } elsif ($ipfn) {
            $imgsrv = $ipfn; #guessing self is second best
         } # resort to master value in site table only if not local to node...