diff --git a/xCAT-server/lib/perl/xCAT/PPC.pm b/xCAT-server/lib/perl/xCAT/PPC.pm
index dee213dbd..9ffe01bbd 100644
--- a/xCAT-server/lib/perl/xCAT/PPC.pm
+++ b/xCAT-server/lib/perl/xCAT/PPC.pm
@@ -1773,7 +1773,7 @@ sub process_request {
 	         }
 	         #print "lasthcp_type:$lasthcp_type ;thishcp_type:$thishcp_type\n";
 	        if(defined($lasthcp_type)) { 
-                if ( ($lasthcp_type =~ /^(hmc)$/ &&  $thishcp_type =~ /^(fsp|bpa)$/) or (($lasthcp_type =~ /^(fsp|bpa)$/ ) && ($thishcp_type =~ /^(hmc)$/ )) )  {
+	        	if ( ($lasthcp_type =~ /^(hmc)$/ &&  $thishcp_type =~ /^(fsp|bpa|cec)$/) or (($lasthcp_type =~ /^(fsp|bpa|cec)$/ ) && ($thishcp_type =~ /^(hmc)$/ )) )  {
 		            $callback->({data=>["the $node\'s hcp type is different from the other's in the specified noderange in the 'ppc' table."]}); 
 	               return;
 	             }