diff --git a/mkosi/mkosi.sanitizers/mkosi.postinst b/mkosi/mkosi.sanitizers/mkosi.postinst
index f420a31b63..4738316c2d 100755
--- a/mkosi/mkosi.sanitizers/mkosi.postinst
+++ b/mkosi/mkosi.sanitizers/mkosi.postinst
@@ -90,6 +90,7 @@ wrap=(
     lvm
     mdadm
     mkfs.btrfs
+    mkfs.erofs
     mkfs.ext4
     mksquashfs
     mount