diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..74e3032
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "pymorton"]
+	path = pymorton
+	url = https://github.com/trevorprater/pymorton.git
diff --git a/pymorton b/pymorton
new file mode 160000
index 0000000..f248683
--- /dev/null
+++ b/pymorton
@@ -0,0 +1 @@
+Subproject commit f248683c19d90e904193c58bbd03e77bc2c43768