diff --git a/tools/make_disc_trees.pl b/tools/make_disc_trees.pl
index 3c4f5ca6..6d08f866 100755
--- a/tools/make_disc_trees.pl
+++ b/tools/make_disc_trees.pl
@@ -1243,7 +1243,7 @@ sub add_firmware_stuff {
     while (defined(my $line = <DPKGC>)) {
 	chomp $line;
 	if ($line =~ m,^[-|l]\S+\s+\S+\s+\d+\s+\S+\s+\S+\s+./(\S+/firmware/\S+)$,) {
-	    printf OFILE "%-55s %s\n", $1, $base_file;
+	    printf OFILE "%-55s %s\n", "/$1", $base_file;
 	}
     }
     close DPKGC;