diff --git a/Makefile b/Makefile
index 4a7c0ef..38c86cf 100644
--- a/Makefile
+++ b/Makefile
@@ -65,11 +65,7 @@ sim:
 
 # Mount first partition of block device used in PCSX2 testing (ATA or USB)
 sim_mount:
-	losetup /dev/loop1 ee/loader/blockdev.raw
-
-# Unmount block device used in PCSX2 testing
-sim_unmount:
-	losetup -d /dev/loop1
+	losetup -Pf ee/loader/bd_exfat.raw
 
 opl:
 	ps2client -h 192.168.1.10 execee host:OPNPS2LD.ELF