Index: libostree-2018.8/src/boot/grub2/grub2-15_ostree
===================================================================
--- libostree-2018.8.orig/src/boot/grub2/grub2-15_ostree
+++ libostree-2018.8/src/boot/grub2/grub2-15_ostree
@@ -39,7 +39,7 @@ set -e
 # it's a lot better than reimplementing the config-generating bits of
 # OSTree in shell script.
 
-. /usr/share/grub/grub-mkconfig_lib
+. /usr/share/grub2/grub-mkconfig_lib
 
 DEVICE=${GRUB_DEVICE_BOOT:-${GRUB_DEVICE}}