diff --git a/mkosi.default b/mkosi.default
index cd65624..11da836 100644
--- a/mkosi.default
+++ b/mkosi.default
@@ -11,7 +11,7 @@ Release=hirsute
 [Output]
 Bootable=yes
 # 'no_timer_check' is old workaround to intermittent apic kernel panic in qemu.
-KernelCommandLine=no_timer_check panic=-1 oops=panic panic_on_warn softlockup_panic=1 ignore_loglevel
+KernelCommandLine=no_timer_check panic=-1 oops=panic panic_on_warn softlockup_panic=1 ignore_loglevel root=LABEL=root
 # Separate initrd for possible debugging.
 WithUnifiedKernelImages=no