diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..3576ce0
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "libicmp"]
+	path = libicmp
+	url = git@github.com:lohhiiccc/icmp.git
diff --git a/libicmp b/libicmp
index f85b342..803d8e3 160000
--- a/libicmp
+++ b/libicmp
@@ -1 +1 @@
-Subproject commit f85b342f8c87eb576dcff8eaa65bb4a2c90551b7
+Subproject commit 803d8e3eb55e0c387bf42055bbc682e932ea2bb9