diff --git a/.gitmodules b/.gitmodules
index 5b204a20..f7c5cd91 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -6,3 +6,6 @@
 	path = contrib/i3ipcpp
 	url = https://github.com/jaagr/i3ipcpp
 	branch = v0.1.3
+[submodule "contrib/xpp"]
+	path = contrib/xpp
+	url = https://github.com/jaagr/xpp
diff --git a/contrib/xpp b/contrib/xpp
new file mode 160000
index 00000000..ce5a2d1e
--- /dev/null
+++ b/contrib/xpp
@@ -0,0 +1 @@
+Subproject commit ce5a2d1e2fadb909aca62c6ddb9675c2f08873b2