diff --git a/mkosi.default.d/10-systemd.conf b/mkosi.default.d/10-systemd.conf
index 58b84cae98..00363e2a9f 100644
--- a/mkosi.default.d/10-systemd.conf
+++ b/mkosi.default.d/10-systemd.conf
@@ -8,6 +8,7 @@ Bootable=yes
 HostonlyInitrd=yes
 # Prevent ASAN warnings when building the image
 Environment=ASAN_OPTIONS=verify_asan_link_order=false
+OutputDirectory=mkosi.output
 
 [Content]
 BuildDirectory=mkosi.builddir