diff --git a/zip_nes_roms.pl b/zip_nes_roms.pl
index 74492f3..809102b 100755
--- a/zip_nes_roms.pl
+++ b/zip_nes_roms.pl
@@ -43,7 +43,7 @@ sub zlist(@){
 
 	foreach $item (@list) {
 		printf ("zipping: %s", $item);
-		zip [$item] => "$item.zip", -Level => Z_BEST_COMPRESSION, Minimal => 1, TextFlag => 0;
+		zip [$item] => "$item.zip", -Level => Z_BEST_COMPRESSION, Minimal => 1, TextFlag => 0, BinModeIn => 1, AutoClose => 1, CanonicalName => 1;
 
 		if(length($ZipError) > 0){
 			printf (" Warning: unable to zip %s - %s\n", $item, $ZipError);