diff --git a/mesecons_fpga/spec/helper_spec.lua b/mesecons_fpga/spec/helper_spec.lua
index 3b5b4c9..5f71c03 100644
--- a/mesecons_fpga/spec/helper_spec.lua
+++ b/mesecons_fpga/spec/helper_spec.lua
@@ -65,8 +65,7 @@ describe("FPGA rotation", function()
 	end)
 end)
 
--- mineunit does not support deprecated ItemStack:get_metadata()
-pending("FPGA programmer", function()
+describe("FPGA programmer", function()
 	local pos2 = {x = 10, y = 0, z = 0}
 
 	before_each(function()
diff --git a/mesecons_fpga/tool.lua b/mesecons_fpga/tool.lua
index fa708b3..e0aff3b 100644
--- a/mesecons_fpga/tool.lua
+++ b/mesecons_fpga/tool.lua
@@ -23,7 +23,7 @@ minetest.register_tool("mesecons_fpga:programmer", {
 			minetest.sound_play("mesecons_fpga_fail", { pos = placer:get_pos(), gain = 0.1, max_hear_distance = 4 }, true)
 			return itemstack
 		end
-		itemstack:set_metadata(meta:get_string("instr"))
+		itemstack:get_meta():set_string("", meta:get_string("instr"))
 		minetest.chat_send_player(placer:get_player_name(), "FPGA gate configuration was successfully copied!")
 		minetest.sound_play("mesecons_fpga_copy", { pos = placer:get_pos(), gain = 0.1, max_hear_distance = 4 }, true)
 
@@ -44,7 +44,7 @@ minetest.register_tool("mesecons_fpga:programmer", {
 			return itemstack
 		end
 
-		local imeta = itemstack:get_metadata()
+		local imeta = itemstack:get_meta():get_string("")
 		if imeta == "" then
 			minetest.chat_send_player(player_name, "Use shift+right-click to copy a gate configuration first.")
 			minetest.sound_play("mesecons_fpga_fail", { pos = user:get_pos(), gain = 0.1, max_hear_distance = 4 }, true)