diff --git a/case/cheapino-top-left.scad b/case/cheapino-top-left.scad
index 02c31db..df61fa1 100644
--- a/case/cheapino-top-left.scad
+++ b/case/cheapino-top-left.scad
@@ -11,7 +11,7 @@ translate([0,0,9.1])
 rotate([0,180,0])
 difference() {
   case();
-  linear_extrude(4.1) offset(delta=0.15) base();
+  linear_extrude(4.1) offset(delta=0.45) base();
 
   // For debug: comment out above 3 lines and comment in this
   //translate([0,0,4.1])
diff --git a/case/cheapino-top-right.scad b/case/cheapino-top-right.scad
index a428df7..89278d8 100644
--- a/case/cheapino-top-right.scad
+++ b/case/cheapino-top-right.scad
@@ -10,7 +10,7 @@ include <modules.scad>
 mirror() {
   difference() {
     case();
-    linear_extrude(4.1) offset(delta=0.15) base();
+    linear_extrude(4.1) offset(delta=0.45) base();
 
     // holes and shape for debug
     // translate([0,0,4.1])