diff --git a/mkosi.conf.d/10-systemd.conf b/mkosi.conf.d/10-systemd.conf
index f9e4d08616..a91378da97 100644
--- a/mkosi.conf.d/10-systemd.conf
+++ b/mkosi.conf.d/10-systemd.conf
@@ -3,9 +3,7 @@
 # This is a settings file for OS image generation using mkosi (https://github.com/systemd/mkosi).
 
 [Output]
-Format=gpt_btrfs
 Bootable=yes
-HostonlyInitrd=yes
 # Prevent ASAN warnings when building the image
 Environment=ASAN_OPTIONS=verify_asan_link_order=false
 OutputDirectory=mkosi.output