diff --git a/install-usb.sh b/install-usb.sh
index 7696e8da..6bad2ad9 100755
--- a/install-usb.sh
+++ b/install-usb.sh
@@ -1,6 +1,5 @@
 #!/bin/sh
 set -e
-. ./disk.sh
 
 SIZE=$(stat -c '%s' banan-os.img | numfmt --to=iec)