diff --git a/depends.txt b/depends.txt
index fa37cc0..a11f5e5 100644
--- a/depends.txt
+++ b/depends.txt
@@ -1,2 +1,3 @@
 default
 technic?
+pipeworks?
diff --git a/init.lua b/init.lua
index 37516eb..ce5c620 100644
--- a/init.lua
+++ b/init.lua
@@ -77,8 +77,8 @@ minetest.register_node("icemachine:machine",{
 		"default_steel_block.png^icemachine_machine_front.png",
 	},
 	pipe_connections = {left=1,right=1,front=1,back=1,left_param2=3,right_param2=1,front_param2=2,back_param2=0,},
-	after_place_node = (pipeworks and pipeworks.scan_for_pipe_objects),
-	after_dig_node = (pipeworks and pipeworks.scan_for_pipe_objects),
+	after_place_node = (pipeworks_installed and pipeworks.scan_for_pipe_objects),
+	after_dig_node = (pipeworks_installed and pipeworks.scan_for_pipe_objects),
 	on_construct = function(pos)
 		local meta = minetest.get_meta(pos)
 		update_status(pos,meta)