diff --git a/package/gluon-core/files/lib/gluon/upgrade/100-core-reset-sysctl b/package/gluon-core/files/lib/gluon/upgrade/100-core-reset-sysctl
new file mode 100755
index 00000000..6f6f4316
--- /dev/null
+++ b/package/gluon-core/files/lib/gluon/upgrade/100-core-reset-sysctl
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+# This script can be removed after Gluon v2018.2
+
+# Check for a random line that always was in /etc/sysctl.conf
+if grep -qxF 'net.ipv4.ip_forward=1' /etc/sysctl.conf; then
+	echo '# Defaults are configured in /etc/sysctl.d/* and can be customized in this file' >/etc/sysctl.conf
+fi