diff --git a/.gitmodules b/.gitmodules
index 1c42fc2..2a39663 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -25,3 +25,6 @@
 [submodule "modules/ntp"]
 	path = modules/ntp
 	url = https://github.com/puppetlabs/puppetlabs-ntp.git
+[submodule "modules/sysctl"]
+	path = modules/sysctl
+	url = https://github.com/thias/puppet-sysctl.git
diff --git a/modules/sysctl b/modules/sysctl
new file mode 160000
index 0000000..fadc668
--- /dev/null
+++ b/modules/sysctl
@@ -0,0 +1 @@
+Subproject commit fadc66807c90686b31de6009a92e32156b0d2d77