diff --git a/code/modules/atmospherics/machinery/components/unary_devices/passive_vent.dm b/code/modules/atmospherics/machinery/components/unary_devices/passive_vent.dm
index 6f8386374e..3f2784a1f8 100644
--- a/code/modules/atmospherics/machinery/components/unary_devices/passive_vent.dm
+++ b/code/modules/atmospherics/machinery/components/unary_devices/passive_vent.dm
@@ -47,9 +47,9 @@
 	return TRUE
 
 /obj/machinery/atmospherics/components/unary/passive_vent/layer1
-	piping_layer = 1
+	piping_layer = PIPING_LAYER_MIN
 	icon_state = "passive_vent_map-1"
 
 /obj/machinery/atmospherics/components/unary/passive_vent/layer3
-	piping_layer = 3
+	piping_layer = PIPING_LAYER_MAX
 	icon_state = "passive_vent_map-3"
diff --git a/tgstation.dme b/tgstation.dme
index b89cefd334..73b544071e 100755
--- a/tgstation.dme
+++ b/tgstation.dme
@@ -3187,7 +3187,6 @@
 #include "modular_citadel\code\modules\reagents\reagents\cit_reagents.dm"
 #include "modular_citadel\interface\skin.dmf"
 // END_INCLUDE
-=======
 // DM Environment file for tgstation.dme.
 // All manual changes should be made outside the BEGIN_ and END_ blocks.
 // New source code should be placed in .dm files: choose File/New --> Code File.