diff --git a/src/lua_baselib.c b/src/lua_baselib.c
index a59ba546e9bd5e4d9da6206759d05788f456a0ff..a265465dad6b1c542024f438fb2e961234d0d051 100644
--- a/src/lua_baselib.c
+++ b/src/lua_baselib.c
@@ -242,16 +242,10 @@ static const char *GetUserdataUType(lua_State *L)
 //   or players[0].powers -> "player_t.powers"
 static int lib_userdataType(lua_State *L)
 {
-	int type;
 	lua_settop(L, 1); // pop everything except arg 1 (in case somebody decided to add more)
-	type = lua_type(L, 1);
-	if (type == LUA_TLIGHTUSERDATA || type == LUA_TUSERDATA)
-	{
-		lua_pushstring(L, GetUserdataUType(L));
-		return 1;
-	}
-	else
-		return luaL_typerror(L, 1, "userdata");
+	luaL_checktype(L, 1, LUA_TUSERDATA);
+	lua_pushstring(L, GetUserdataUType(L));
+	return 1;
 }
 
 // Takes a metatable as first and only argument
diff --git a/src/lua_consolelib.c b/src/lua_consolelib.c
index 5344fee7617aacf789e577eed98de26b3296818a..10959324e974f6243dcc7edbf57bd99c4b12e52e 100644
--- a/src/lua_consolelib.c
+++ b/src/lua_consolelib.c
@@ -440,8 +440,22 @@ static int lib_cvRegisterVar(lua_State *L)
 
 static int lib_cvFindVar(lua_State *L)
 {
-	LUA_PushLightUserdata(L, CV_FindVar(luaL_checkstring(L,1)), META_CVAR);
-	return 1;
+	consvar_t *cv;
+	if (( cv = CV_FindVar(luaL_checkstring(L,1)) ))
+	{
+		lua_settop(L,1);/* We only want one argument in the stack. */
+		lua_pushlightuserdata(L, cv);/* Now the second value on stack. */
+		luaL_getmetatable(L, META_CVAR);
+		/*
+		The metatable is the last value on the stack, so this
+		applies it to the second value, which is the cvar.
+		*/
+		lua_setmetatable(L,2);
+		lua_pushvalue(L,2);
+		return 1;
+	}
+	else
+		return 0;
 }
 
 static int CVarSetFunction
diff --git a/src/lua_script.c b/src/lua_script.c
index 7fd5a98e6f71620ad4c89eff58e71e222773b622..9f84328329485dac3df433b96403226b51b4535c 100644
--- a/src/lua_script.c
+++ b/src/lua_script.c
@@ -714,27 +714,6 @@ fixed_t LUA_EvalMath(const char *word)
 	return res;
 }
 
-/*
-LUA_PushUserdata but no userdata is created.
-You can't invalidate it therefore.
-*/
-
-void LUA_PushLightUserdata (lua_State *L, void *data, const char *meta)
-{
-	if (data)
-	{
-		lua_pushlightuserdata(L, data);
-		luaL_getmetatable(L, meta);
-		/*
-		The metatable is the last value on the stack, so this
-		applies it to the second value, which is the userdata.
-		*/
-		lua_setmetatable(L, -2);
-	}
-	else
-		lua_pushnil(L);
-}
-
 // Takes a pointer, any pointer, and a metatable name
 // Creates a userdata for that pointer with the given metatable
 // Pushes it to the stack and stores it in the registry.
diff --git a/src/lua_script.h b/src/lua_script.h
index 77fbb7c1d125f682db270b7d4f051d6673290d43..9311a727a09d2ae330be76beeba160c8194243d0 100644
--- a/src/lua_script.h
+++ b/src/lua_script.h
@@ -87,7 +87,6 @@ typedef enum {
 	LPUSHED_EXISTING,
 } lpushed_t;
 
-void LUA_PushLightUserdata(lua_State *L, void *data, const char *meta);
 void LUA_PushUserdata(lua_State *L, void *data, const char *meta);
 lpushed_t LUA_RawPushUserdata(lua_State *L, void *data);