diff --git a/gnu/bootloader/grub.scm b/gnu/bootloader/grub.scm
index 8371888fa5..06856dd58c 100644
--- a/gnu/bootloader/grub.scm
+++ b/gnu/bootloader/grub.scm
@@ -397,6 +397,7 @@ (define install-grub-efi
         ;; root partition.
         (setenv "GRUB_ENABLE_CRYPTODISK" "y")
         (unless (zero? (system* grub-install "--boot-directory" install-dir
+                                "--bootloader-id=GuixSD"
                                 "--efi-directory" target-esp))
           (error "failed to install GRUB (EFI)")))))