diff --git a/elepower_machines/machines/pcb_plant.lua b/elepower_machines/machines/pcb_plant.lua
index 2702fb9..de78149 100644
--- a/elepower_machines/machines/pcb_plant.lua
+++ b/elepower_machines/machines/pcb_plant.lua
@@ -6,6 +6,10 @@ local function get_formspec(power, input, state, active, percent)
 		t = "image[3.5,1.75;1,1;elepower_uv_bulb_lit.png]"
 	end
 
+	if not percent then
+		percent = 0
+	end
+
 	return "size[8,8.5]"..
 		default.gui_bg..
 		default.gui_bg_img..
diff --git a/elepower_machines/machines/pump.lua b/elepower_machines/machines/pump.lua
index cfb5ce9..6fca8d4 100644
--- a/elepower_machines/machines/pump.lua
+++ b/elepower_machines/machines/pump.lua
@@ -2,6 +2,7 @@
 local c_air = minetest.get_content_id("air")
 
 local function get_formspec(power, fluid, state, level)
+	if not level then level = 0 end
 	return "size[8,8.5]"..
 		default.gui_bg..
 		default.gui_bg_img..
@@ -232,7 +233,7 @@ ele.register_machine("elepower_machines:pump", {
 	on_timer = timer,
 	on_construct = function (pos)
 		local meta = minetest.get_meta(pos)
-		meta:set_string("formspec", nil, nil, 0, -1)
+		meta:set_string("formspec", get_formspec(nil, nil, 0, -1))
 	end,
 	-- Upgradable
 	ele_upgrades = {
diff --git a/screenshot.png b/screenshot.png
index 0ad7963..adbe497 100644
Binary files a/screenshot.png and b/screenshot.png differ