diff --git a/games/devtest/mods/unittests/misc.lua b/games/devtest/mods/unittests/misc.lua
index 10af80585..fd6c0a058 100644
--- a/games/devtest/mods/unittests/misc.lua
+++ b/games/devtest/mods/unittests/misc.lua
@@ -1,8 +1,11 @@
 local function test_random()
-	-- Try out PseudoRandom
-	local pseudo = PseudoRandom(13)
-	assert(pseudo:next() == 22290)
-	assert(pseudo:next() == 13854)
+	-- We have comprehensive unit tests in C++, this is just to make sure the API code isn't messing up
+	local pr = PseudoRandom(13)
+	assert(pr:next() == 22290)
+	assert(pr:next() == 13854)
+
+	local pr2 = PseudoRandom(-101)
+	assert(pr2:next(0, 100) == 35)
 end
 unittests.register("test_random", test_random)
 
diff --git a/src/script/lua_api/l_noise.cpp b/src/script/lua_api/l_noise.cpp
index 997b82b8a..16eb1de43 100644
--- a/src/script/lua_api/l_noise.cpp
+++ b/src/script/lua_api/l_noise.cpp
@@ -433,7 +433,7 @@ int LuaPseudoRandom::create_object(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 
-	u64 seed = luaL_checknumber(L, 1);
+	s32 seed = luaL_checkinteger(L, 1);
 	LuaPseudoRandom *o = new LuaPseudoRandom(seed);
 	*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
 	luaL_getmetatable(L, className);