diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..d07db8b
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "tomlc99"]
+	path = tomlc99
+	url = https://github.com/cktan/tomlc99.git
diff --git a/tomlc99 b/tomlc99
new file mode 160000
index 0000000..f06bf3a
--- /dev/null
+++ b/tomlc99
@@ -0,0 +1 @@
+Subproject commit f06bf3a5ccdf60271a8cb25a066776297af8868a