diff --git a/res/dsk/guardian 8k file PRODOS (san inc crack).dsk b/res/dsk/guardian 8k file PRODOS (san inc crack).po
similarity index 88%
rename from res/dsk/guardian 8k file PRODOS (san inc crack).dsk
rename to res/dsk/guardian 8k file PRODOS (san inc crack).po
index 75859db7d..24b587733 100644
Binary files a/res/dsk/guardian 8k file PRODOS (san inc crack).dsk and b/res/dsk/guardian 8k file PRODOS (san inc crack).po differ