diff --git a/mxraid/mxraid_assemble b/mxraid/mxraid_assemble
index 18cae2f..03b5f40 100755
--- a/mxraid/mxraid_assemble
+++ b/mxraid/mxraid_assemble
@@ -455,7 +455,8 @@ exit;
     my %tmp;
     for (keys %{$self->{db}}) {
       my ($cat,$size,$num) = $_ =~ m/([CDM])([\da-f])(\d{3})/;
-      next unless defined $cat and defined $num;
+      next unless defined $num;
+      $cat = '(C/M)' if $cat ne 'D';
       if (exists $tmp{"$cat$size"} and $tmp{"$cat$size"} > $num) {
         $num = $tmp{"$cat$size"};
       }