diff --git a/code/modules/space transition/space_transition.dm b/code/modules/space transition/space_transition.dm
index a53fe6c51c4..b821536bcd0 100644
--- a/code/modules/space transition/space_transition.dm	
+++ b/code/modules/space transition/space_transition.dm	
@@ -123,9 +123,9 @@ var/list/z_levels_list = list()
 	//Its either this or madness with lotsa math
 
 	var/list/x_pos_beginning = list(1, 1, world.maxx - TRANSITIONEDGE, 1)  //x values of the lowest-leftest turfs of the respective 4 blocks on each side of zlevel
-	var/list/y_pos_beginning = list(world.maxy - TRANSITIONEDGE, 1, 1, 1)  //y values respectively
+	var/list/y_pos_beginning = list(world.maxy - TRANSITIONEDGE, 1, TRANSITIONEDGE, TRANSITIONEDGE)  //y values respectively
 	var/list/x_pos_ending = list(world.maxx, world.maxx, world.maxx, TRANSITIONEDGE)	//x values of the highest-rightest turfs of the respective 4 blocks on each side of zlevel
-	var/list/y_pos_ending = list(world.maxy, TRANSITIONEDGE, world.maxy, world.maxy)	//y values respectively
+	var/list/y_pos_ending = list(world.maxy, TRANSITIONEDGE, world.maxy - TRANSITIONEDGE, world.maxy - TRANSITIONEDGE)	//y values respectively
 	var/list/x_pos_transition = list(1, 1, TRANSITIONEDGE + 2, world.maxx - TRANSITIONEDGE - 2)		//values of x for the transition from respective blocks on the side of zlevel, 1 is being translated into turfs respective x value later in the code
 	var/list/y_pos_transition = list(TRANSITIONEDGE + 2, world.maxy - TRANSITIONEDGE - 2, 1, 1)		//values of y for the transition from respective blocks on the side of zlevel, 1 is being translated into turfs respective y value later in the code