diff --git a/functions b/functions
index 1d30922..e439ef6 100644
--- a/functions
+++ b/functions
@@ -290,7 +290,7 @@
     esac
 
     if is_arch "ppc64"; then
-        IMG_PROPERTY="--property hw_disk_bus=scsi --property hw_cdrom_bus=scsi"
+        IMG_PROPERTY="--property hw_cdrom_bus=scsi"
     fi
 
     if [ "$CONTAINER_FORMAT" = "bare" ]; then