diff --git a/home_workshop_misc/init.lua b/home_workshop_misc/init.lua
index 71be024..e029163 100644
--- a/home_workshop_misc/init.lua
+++ b/home_workshop_misc/init.lua
@@ -44,6 +44,9 @@ minetest.register_node("home_workshop_misc:beer_tap", {
 	},
 	on_rightclick = function(pos, node, clicker, itemstack, pointed_thing)
 		local inv = clicker:get_inventory()
+		if not itemstack then
+			return
+		end
 
 		local wieldname = itemstack:get_name()
 		if wieldname == "vessels:drinking_glass" then