diff --git a/mkosi/mkosi.images/build/mkosi.conf.d/debian-ubuntu/mkosi.conf b/mkosi/mkosi.images/build/mkosi.conf.d/debian-ubuntu/mkosi.conf
index 55d7b1d904..b3fd083659 100644
--- a/mkosi/mkosi.images/build/mkosi.conf.d/debian-ubuntu/mkosi.conf
+++ b/mkosi/mkosi.images/build/mkosi.conf.d/debian-ubuntu/mkosi.conf
@@ -12,3 +12,4 @@ Packages=
         git-core
         ?exact-name(libclang-rt-dev)
         dpkg-dev
+        mount