diff --git a/elements/dpkg/post-install.d/99-clean-up-cache b/elements/dpkg/finalise.d/99-clean-up-cache
similarity index 56%
rename from elements/dpkg/post-install.d/99-clean-up-cache
rename to elements/dpkg/finalise.d/99-clean-up-cache
index 487c34744..8046c8a0e 100755
--- a/elements/dpkg/post-install.d/99-clean-up-cache
+++ b/elements/dpkg/finalise.d/99-clean-up-cache
@@ -4,6 +4,4 @@
 set -eu
 set -o pipefail
 
-if ! mount | grep /var/cache/apt/archives; then
-    apt-get clean
-fi
+apt-get clean