diff --git a/avr/devices/n30/enclosure.scad b/avr/devices/n30/enclosure.scad
index 5a07fab..73b5548 100644
--- a/avr/devices/n30/enclosure.scad
+++ b/avr/devices/n30/enclosure.scad
@@ -20,7 +20,7 @@ hook_slit_height = 2.5;
 
 airslit_height = 1.75;
 
-ridge_height = 15;
+ridge_height = 14;
 ridge_width = 1;
 ridge_depth = 2.5;