diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..192af45
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "sing-box_mod"]
+	path = sing-box_mod
+	url = https://github.com/wyx2685/sing-box_mod.git
diff --git a/sing-box_mod b/sing-box_mod
new file mode 160000
index 0000000..b1eb0a8
--- /dev/null
+++ b/sing-box_mod
@@ -0,0 +1 @@
+Subproject commit b1eb0a85adf102ebf7409558097af98f33ccdbac