diff --git a/makepkg-overlay b/makepkg-overlay
index edf178c..11df0a8 100755
--- a/makepkg-overlay
+++ b/makepkg-overlay
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 # Depends on lxf
+shopt -s nullglob
 
 cleanup() { lxf umount "$cnt"; }