diff --git a/xCAT-genesis-scripts/bin/dodiscovery b/xCAT-genesis-scripts/bin/dodiscovery
index a92c19eb7..29e8ba559 100755
--- a/xCAT-genesis-scripts/bin/dodiscovery
+++ b/xCAT-genesis-scripts/bin/dodiscovery
@@ -159,10 +159,12 @@ fi
 
 flag_mtm=`echo '$MTM' | sed 's/0//g'`
 if [ $flag_mtm ] && [ "$MTM" != "unknown" ]; then
+	MTM=`echo $MTM | sed 's/\.//g'`
 	echo "<mtm>$MTM</mtm>" >> /tmp/discopacket
 fi
 flag_serial=`echo '$SERIAL' | sed 's/0//g'`
 if [ $flag_serial ] && [ "$SERIAL" != "unknown" ]; then
+	SERIAL=`echo $SERIAL | sed 's/\.//g'`
 	echo "<serial>$SERIAL</serial>" >> /tmp/discopacket
 fi
 if [ "$PLATFORM" != "unknown" ]; then
diff --git a/xCAT-server/lib/xcat/plugins/bmcdiscover.pm b/xCAT-server/lib/xcat/plugins/bmcdiscover.pm
index 270ab01a1..4264f519d 100644
--- a/xCAT-server/lib/xcat/plugins/bmcdiscover.pm
+++ b/xCAT-server/lib/xcat/plugins/bmcdiscover.pm
@@ -1155,8 +1155,8 @@ sub bmcdiscovery_openbmc{
         }
 
         # delete space before and after
-        $mtm =~ s/^\s+|\s+$//g; 
-        $serial =~ s/^\s+|\s+$//g;
+        $mtm =~ s/^\s+|\s+$|\.+//g; 
+        $serial =~ s/^\s+|\s+$|\.+//g;
 
         $mtm = '' if ($mtm =~ /^0+$/);
         $serial = '' if ($serial =~ /^0+$/);