diff --git a/mkosi.default.d/debian/10-mkosi.debian b/mkosi.default.d/debian/10-mkosi.debian
index 2b712d6778..6b6cef1d00 100644
--- a/mkosi.default.d/debian/10-mkosi.debian
+++ b/mkosi.default.d/debian/10-mkosi.debian
@@ -10,6 +10,7 @@ Release=testing
 [Content]
 Packages=
         cryptsetup-bin
+        fdisk
         iproute2
         isc-dhcp-server
         libbpf0
diff --git a/mkosi.default.d/ubuntu/10-mkosi.ubuntu b/mkosi.default.d/ubuntu/10-mkosi.ubuntu
index 60e1bcfa66..d15e9f8555 100644
--- a/mkosi.default.d/ubuntu/10-mkosi.ubuntu
+++ b/mkosi.default.d/ubuntu/10-mkosi.ubuntu
@@ -11,6 +11,7 @@ Repositories=main,universe
 [Content]
 Packages=
         cryptsetup-bin
+        fdisk
         iproute2
         isc-dhcp-server
         libbpf0