diff --git a/code/datums/components/squeak.dm b/code/datums/components/squeak.dm
index b8cc3edb3d6..96412d231c2 100644
--- a/code/datums/components/squeak.dm
+++ b/code/datums/components/squeak.dm
@@ -104,9 +104,9 @@
 	UnregisterSignal(user, COMSIG_MOVABLE_DISPOSING)
 
 // Disposal pipes related shit
-/datum/component/squeak/proc/disposing_react(datum/source, obj/structure/disposalholder/holder, obj/machinery/disposal/source)
+/datum/component/squeak/proc/disposing_react(datum/source, obj/structure/disposalholder/disposal_holder, obj/machinery/disposal/disposal_source)
 	//We don't need to worry about unregistering this signal as it will happen for us automaticaly when the holder is qdeleted
-	RegisterSignal(holder, COMSIG_ATOM_DIR_CHANGE, .proc/holder_dir_change)
+	RegisterSignal(disposal_holder, COMSIG_ATOM_DIR_CHANGE, .proc/holder_dir_change)
 
 /datum/component/squeak/proc/holder_dir_change(datum/source, old_dir, new_dir)
 	//If the dir changes it means we're going through a bend in the pipes, let's pretend we bumped the wall