diff --git a/src/dactyl_keyboard/dactyl.clj b/src/dactyl_keyboard/dactyl.clj
index e2794df..43525b5 100644
--- a/src/dactyl_keyboard/dactyl.clj
+++ b/src/dactyl_keyboard/dactyl.clj
@@ -555,7 +555,7 @@
 
 (def pro-micro-position (map + (key-position 0 2 (wall-locate3 -1 0)) [-5 0 -20]))
 (def pro-micro-space-size [4 18 12]) ; z has no wall;
-(def pro-micro-wall-thickness 4)
+(def pro-micro-wall-thickness 2)
 (def pro-micro-holder-size [(+ pro-micro-wall-thickness (first pro-micro-space-size)) (+ pro-micro-wall-thickness (second pro-micro-space-size)) (last pro-micro-space-size)])
 (def pro-micro-holder
   (->> (cube (first pro-micro-holder-size) (second pro-micro-holder-size) (last pro-micro-holder-size))