diff --git a/code/modules/multiz/pipes.dm b/code/modules/multiz/pipes.dm
index 6b6b24c4705..7570d12b35d 100644
--- a/code/modules/multiz/pipes.dm
+++ b/code/modules/multiz/pipes.dm
@@ -51,7 +51,7 @@ obj/machinery/atmospherics/pipe/zpipe/New()
 		invisibility = i ? 101 : 0
 	update_icon()
 
-obj/machinery/atmospherics/pipe/up/process()
+obj/machinery/atmospherics/pipe/zpipe/process()
 	if(!parent) //This should cut back on the overhead calling build_network thousands of times per cycle
 		..()
 	else
@@ -81,10 +81,10 @@ obj/machinery/atmospherics/pipe/zpipe/proc/burst()
 	qdel(src) // NOT qdel.
 
 obj/machinery/atmospherics/pipe/zpipe/proc/normalize_dir()
-	if(dir==3)
-		set_dir(1)
-	else if(dir==12)
-		set_dir(4)
+	if(dir == (NORTH|SOUTH))
+		set_dir(NORTH)
+	else if(dir == (EAST|WEST))
+		set_dir(EAST)
 
 obj/machinery/atmospherics/pipe/zpipe/Destroy()
 	if(node1)