diff --git a/technic_chests/common.lua b/technic_chests/common.lua
index 9a5bc7a..6369b7a 100644
--- a/technic_chests/common.lua
+++ b/technic_chests/common.lua
@@ -28,7 +28,9 @@ technic.chests.can_dig = function(pos, player)
 end
 
 local function inv_change(pos, count, player)
-	if not default.can_interact_with_node(player, pos) then
+	-- Skip check for pipeworks (fake player)
+	if minetest.is_player(player) and
+			not default.can_interact_with_node(player, pos) then
 		return 0
 	end
 	return count