diff --git a/.gitmodules b/.gitmodules
index 11d30c4..053883a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -235,3 +235,6 @@
 	path = addons/ftl-hyperspace/module
 	url = https://github.com/ranhai613/ftl-hs-lua-lls-addon.git
 	branch = publish
+[submodule "addons/luaposix/module"]
+	path = addons/luaposix/module
+	url = https://github.com/kayibea/lls-posix
diff --git a/addons/luaposix/info.json b/addons/luaposix/info.json
new file mode 100644
index 0000000..7aba235
--- /dev/null
+++ b/addons/luaposix/info.json
@@ -0,0 +1,7 @@
+{
+  "$schema": "https://raw.githubusercontent.com/LuaLS/LLS-Addons/main/schemas/addon_info.schema.json",
+  "name": "POSIX",
+  "description": "Provides definitions for posix Lua API",
+  "hasPlugin": false,
+  "size": 43490
+}
diff --git a/addons/luaposix/module b/addons/luaposix/module
new file mode 160000
index 0000000..5faf5bc
--- /dev/null
+++ b/addons/luaposix/module
@@ -0,0 +1 @@
+Subproject commit 5faf5bcbf62c338f46341228c9c864455b39b232