diff --git a/code/ATMOSPHERICS/pipes.dm b/code/ATMOSPHERICS/pipes.dm
index f049c6c0238..1da6891512a 100644
--- a/code/ATMOSPHERICS/pipes.dm
+++ b/code/ATMOSPHERICS/pipes.dm
@@ -190,9 +190,9 @@
 	alpha = 255
 
 	switch(dir)
-		if(SOUTH || NORTH)
+		if(SOUTH, NORTH)
 			initialize_directions = SOUTH|NORTH
-		if(EAST || WEST)
+		if(EAST, WEST)
 			initialize_directions = EAST|WEST
 		if(NORTHEAST)
 			initialize_directions = NORTH|EAST