diff --git a/case.scad b/case.scad
index 7845543..d038710 100644
--- a/case.scad
+++ b/case.scad
@@ -1,7 +1,7 @@
 include <dimensions.scad>
 use <phone.scad>
 
-$fn=50;
+$fs = 1;
 
 module plate(Margin, Thick=Height)
 {
diff --git a/fillet.scad b/fillet.scad
index 14732e8..a8e0841 100644
--- a/fillet.scad
+++ b/fillet.scad
@@ -1,6 +1,6 @@
 include <dimensions.scad>
 
-$fn=50;
+$fs = 1;
 
 	minkowski() {
 		difference() {
diff --git a/phone.scad b/phone.scad
index 3408c86..49f054d 100644
--- a/phone.scad
+++ b/phone.scad
@@ -1,7 +1,7 @@
 include <dimensions.scad>
 use <bits.scad>
 
-$fn=50;
+$fs = 1;
 
 module phone (Pad=0, Bits=0)
 {