diff --git a/jecs.luau b/jecs.luau
index ca19c03..214b066 100755
--- a/jecs.luau
+++ b/jecs.luau
@@ -2034,18 +2034,16 @@ local function ecs_bulk_insert(world: World, entity: Entity, ids: { Entity }, va
 		local value = values[i] :: any
 
 		local on_add = idr.hooks.on_add
-		local on_change = idr.hooks.on_change
 
-		if value then
+		if value ~= nil then
 			columns_map[id][row] = value
+			local on_change = idr.hooks.on_change
 			local hook = if set then on_change else on_add
 			if hook then
 				hook(entity, id, value :: any)
 			end
-		else
-			if on_add then
-				on_add(entity, id, value)
-			end
+		elseif on_add then
+			on_add(entity, id)
 		end
 	end
 end
@@ -2812,7 +2810,7 @@ local function world_new()
 			if value == NULL then
 				inner_world_add(world, i, ty)
 			else
-				inner_world_add(world, i, ty, value)
+				inner_world_set(world, i, ty, value)
 			end
 		end
 	end
diff --git a/test/tests.luau b/test/tests.luau
index 3867b94..dd53258 100755
--- a/test/tests.luau
+++ b/test/tests.luau
@@ -93,7 +93,10 @@ TEST("bulk", function()
 	CHECK(world:get(e, B) == 2)
 	CHECK(world:get(e, C) == 3)
 
-	jecs.bulk_insert(world, e, { D, E, F }, { 4, nil, 5 })
+	jecs.bulk_insert(world, e,
+		{ D, E, F },
+		{ 4, nil, 5 }
+	)
 	CHECK(world:get(e, A) == 1)
 	CHECK(world:get(e, B) == 2)
 	CHECK(world:get(e, C) == 3)
@@ -102,7 +105,10 @@ TEST("bulk", function()
 	CHECK(world:get(e, E) == nil and world:has(e, E))
 	CHECK(world:get(e, F) == 5)
 
-	jecs.bulk_insert(world, e, { A, D, E, F, C }, { 10, 40, nil, 50, 30 })
+	jecs.bulk_insert(world, e,
+		{ A, D, E, F, C },
+		{ 10, 40, nil, 50, 30 }
+	)
 
 	CHECK(world:get(e, A) == 10)
 	CHECK(world:get(e, B) == 2)