diff --git a/code/modules/atmospherics/machinery/pipes/layermanifold.dm b/code/modules/atmospherics/machinery/pipes/layermanifold.dm
index 6fab00ad7c3..10ac229cd43 100644
--- a/code/modules/atmospherics/machinery/pipes/layermanifold.dm
+++ b/code/modules/atmospherics/machinery/pipes/layermanifold.dm
@@ -70,9 +70,9 @@
 
 /obj/machinery/atmospherics/pipe/layer_manifold/SetInitDirections()
 	switch(dir)
-		if(NORTH || SOUTH)
+		if(NORTH, SOUTH)
 			initialize_directions = NORTH|SOUTH
-		if(EAST || WEST)
+		if(EAST, WEST)
 			initialize_directions = EAST|WEST
 
 /obj/machinery/atmospherics/pipe/layer_manifold/isConnectable(obj/machinery/atmospherics/target, given_layer)