diff --git a/debian/haveged-udeb.dirs b/debian/haveged-udeb.dirs
deleted file mode 100644
index 5ba0dde..0000000
--- a/debian/haveged-udeb.dirs
+++ /dev/null
@@ -1 +0,0 @@
-/dev/shm
diff --git a/debian/haveged-udeb.postinst b/debian/haveged-udeb.postinst
new file mode 100755
index 0000000..6966683
--- /dev/null
+++ b/debian/haveged-udeb.postinst
@@ -0,0 +1,2 @@
+#!/bin/sh
+mkdir -p /dev/shm