diff --git a/mkosi.conf b/mkosi.conf
index 6ed10d6292b..9d23f4f8b2c 100644
--- a/mkosi.conf
+++ b/mkosi.conf
@@ -40,6 +40,9 @@ KernelCommandLine=systemd.crash_shell
                   panic=-1
                   softlockup_panic=1
                   panic_on_warn=1
+                  # These don't ship proper units with [Install] directives so we have to mask them instead.
+                  systemd.mask=isc-dhcp-server.service
+                  systemd.mask=mdmonitor.service
 
 [Host]
 Credentials=journal.storage=persistent