diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..062cc71e
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "extern/pybind11"]
+	path = extern/pybind11
+	url = ../../pybind/pybind11
+	branch = stable
diff --git a/extern/pybind11 b/extern/pybind11
new file mode 160000
index 00000000..01ab9356
--- /dev/null
+++ b/extern/pybind11
@@ -0,0 +1 @@
+Subproject commit 01ab935612a6800c4ad42957808d6cbd30047902