diff --git a/mkosi.images/system/mkosi.conf.d/10-debian-ubuntu/mkosi.build.chroot b/mkosi.images/system/mkosi.conf.d/10-debian-ubuntu/mkosi.build.chroot
index 2015a4b46c1..8819b46eaf1 100755
--- a/mkosi.images/system/mkosi.conf.d/10-debian-ubuntu/mkosi.build.chroot
+++ b/mkosi.images/system/mkosi.conf.d/10-debian-ubuntu/mkosi.build.chroot
@@ -44,10 +44,6 @@ EOF
 cat debian/changelog >>debian/changelog.new
 mv debian/changelog.new debian/changelog
 
-# FIXME: Remove after tmp.mount is kept intact in the debian packaging for UPSTREAM=1 builds.
-sed --in-place '/tmp.mount/d' debian/rules
-sed --in-place '/tmp.mount/d' debian/not-installed
-
 build() {
     DEB_BUILD_OPTIONS=$(awk '$1=$1' <<<"\
         $( ((WITH_TESTS)) || echo nocheck) \