diff --git a/matter-iso/main.sh b/matter-iso/main.sh
index b591ba5..e948076 100755
--- a/matter-iso/main.sh
+++ b/matter-iso/main.sh
@@ -80,6 +80,7 @@ if ! type "grub-mkrescue" > /dev/null; then
   set_indent
   warn "If you want to create UEFI ISO files make sure you install x64 GRUB or grub-efi"
   warn "If you want to create BIOS ISO files make sure you install x86 GRUB or grub-bios"
+  warn "After installing GRUB, don't forget to install libisoburn as well"
   exit 1
 fi