diff --git a/case/top.scad b/case/top.scad
index a09d0d7..3fcbd6a 100644
--- a/case/top.scad
+++ b/case/top.scad
@@ -272,7 +272,7 @@ module top_case(key_switch_sizes, pcb_screw_holes) {
                 hole_y = plate_length / 2 - hole_length / 2;
 
                 difference() {
-                    cube([plate_width, plate_length, wall_width], false);
+                    cube([plate_width + eps, plate_length + eps, wall_width], false);
 
                     translate([hole_x, hole_y, -eps])
                     cube([hole_width, hole_length, wall_width + 2*eps], false);