diff --git a/debian/ifupdown2.postinst b/debian/ifupdown2.postinst
index a22b825..f9a719c 100644
--- a/debian/ifupdown2.postinst
+++ b/debian/ifupdown2.postinst
@@ -111,11 +111,10 @@ case "$1" in
         process_udev
         chmod +x /usr/share/ifupdown2/__main__.py
         postinst_remove_diverts
-        if [ -f "/tmp/.ifupdown2-first-install" ] && [ ! -e /proxmox_install_mode ]; then
+        if [ -z "$2" ] && [ ! -e /proxmox_install_mode ]; then
             proxmox_compatibility
             echo "Reloading network config on first install"
             ifreload -a || report_warn "Reloading failed"
-            rm  /tmp/.ifupdown2-first-install
         fi
     ;;
 
diff --git a/debian/ifupdown2.preinst b/debian/ifupdown2.preinst
deleted file mode 100644
index aa8653e..0000000
--- a/debian/ifupdown2.preinst
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/bin/sh
-set -e
-
-case "$1" in
-    install)
-        touch /tmp/.ifupdown2-first-install
-        ;;
-
-    upgrade|abort-upgrade)
-        ;;
-
-    *)
-        echo "postinst called with unknown argument \`$1'" >&2
-        exit 0
-        ;;
-esac
-
-#DEBHELPER#
-
-exit 0