diff --git a/mesecons/wires.lua b/mesecons/wires.lua
index bca5e88..3163495 100644
--- a/mesecons/wires.lua
+++ b/mesecons/wires.lua
@@ -48,10 +48,10 @@ box_zp = {-1/16, -.5, 1/16, 1/16, -.5+1/16, 8/16}
 box_xm = {-8/16, -.5, -1/16, -1/16, -.5+1/16, 1/16}
 box_zm = {-1/16, -.5, -8/16, 1/16, -.5+1/16, -1/16}
 
-box_xpy = {.5-1/16, -.5+1/16, -1/16, .5, .5+1/16, 1/16}
-box_zpy = {-1/16, -.5+1/16, .5-1/16, 1/16, .5+1/16, .5}
-box_xmy = {-.5, -.5+1/16, -1/16, -.5+1/16, .5+1/16, 1/16}
-box_zmy = {-1/16, -.5+1/16, -.5, 1/16, .5+1/16, -.5+1/16}
+box_xpy = {.5-1/16, -.5+1/16, -1/16, .5, .4999+1/16, 1/16}
+box_zpy = {-1/16, -.5+1/16, .5-1/16, 1/16, .4999+1/16, .5}
+box_xmy = {-.5, -.5+1/16, -1/16, -.5+1/16, .4999+1/16, 1/16}
+box_zmy = {-1/16, -.5+1/16, -.5, 1/16, .4999+1/16, -.5+1/16}
 
 for xp=0, 1 do
 for zp=0, 1 do