diff --git a/Cargo.lock b/Cargo.lock
index 6c4edfc..1e9fd2f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -68,7 +68,7 @@ dependencies = [
 
 [[package]]
 name = "gmod"
-version = "0.1.3"
+version = "0.1.4"
 dependencies = [
  "cstr",
  "ctor",
diff --git a/gmod/Cargo.toml b/gmod/Cargo.toml
index 3eb8e9d..652ca37 100644
--- a/gmod/Cargo.toml
+++ b/gmod/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "gmod"
-version = "0.1.3"
+version = "0.1.4"
 authors = ["William Venner <william@venner.io>"]
 edition = "2018"
 license = "MIT"
diff --git a/gmod/src/lua/lua_state.rs b/gmod/src/lua/lua_state.rs
index 3343498..bc08af0 100644
--- a/gmod/src/lua/lua_state.rs
+++ b/gmod/src/lua/lua_state.rs
@@ -272,7 +272,7 @@ impl LuaState {
 	}
 
 	#[inline]
-	pub unsafe fn check_userdata(&self, arg: i32, name: LuaString) -> *const c_void {
+	pub unsafe fn check_userdata(&self, arg: i32, name: LuaString) -> *mut c_void {
 		(LUA_SHARED.lual_checkudata)(*self, arg, name)
 	}