diff --git a/.gitmodules b/.gitmodules
index 3572e38a4..0fa6c92cd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -447,3 +447,6 @@
 [submodule "src/external/metal"]
 	path = src/external/metal
 	url = ../darling-metal.git
+[submodule "src/external/xnu"]
+	path = src/external/xnu
+	url = ../darling-xnu.git
diff --git a/src/external/xnu b/src/external/xnu
new file mode 160000
index 000000000..5f1cb933c
--- /dev/null
+++ b/src/external/xnu
@@ -0,0 +1 @@
+Subproject commit 5f1cb933ced23707900f74242ffd58fc2f9fc4fa