diff --git a/src/modules/bootloader/bootloader.conf b/src/modules/bootloader/bootloader.conf
index 7256c9383..b02782857 100644
--- a/src/modules/bootloader/bootloader.conf
+++ b/src/modules/bootloader/bootloader.conf
@@ -1,5 +1,6 @@
 ---
 # Define which bootloader you want to use for EFI installation
+# Possible options are 'grub' and 'gummiboot'.
 efiBootLoader: "gummiboot"
 
 # Gummiboot configuration files settings, set kernel and initramfs file names