diff --git a/.gitmodules b/.gitmodules
index 047edb3..9cbf735 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -278,3 +278,6 @@
 	path = addons/ethos/module
 	url = https://github.com/flyingeek/ethos-lua-definitions.git
 	branch = luals-addon
+[submodule "addons/lua-bint/module"]
+	path = addons/lua-bint/module
+	url = https://github.com/Yue-bin/lua-bint-type.git
diff --git a/addons/lua-bint/info.json b/addons/lua-bint/info.json
new file mode 100644
index 0000000..058ccf4
--- /dev/null
+++ b/addons/lua-bint/info.json
@@ -0,0 +1,7 @@
+{
+  "$schema": "https://raw.githubusercontent.com/LuaLS/LLS-Addons/main/schemas/addon_info.schema.json",
+  "name": "lua-bint",
+  "description": "Type definitions for the lua-bint arbitrary-precision integer library",
+  "size": 19364,
+  "hasPlugin": false
+}
diff --git a/addons/lua-bint/module b/addons/lua-bint/module
new file mode 160000
index 0000000..b740d6b
--- /dev/null
+++ b/addons/lua-bint/module
@@ -0,0 +1 @@
+Subproject commit b740d6b2843c9170e929779629fce7da18defca1