diff --git a/grml2usb b/grml2usb
index 0199fd6..d206f1d 100755
--- a/grml2usb
+++ b/grml2usb
@@ -1760,7 +1760,7 @@ def handle_secure_boot(target, efi_img):
         logging.critical("Fatal: %s", error)
         sys.exit(1)
 
-    grub_cfg = efi_mountpoint + "/boot/grub/grub.cfg"
+    grub_cfg = search_file("grub.cfg", efi_mountpoint + "/boot/grub/")
     logging.debug("grub_cfg = %s" % grub_cfg)
     if not grub_cfg:
         logging.info(