diff --git a/src/pug/templates/control-view.pug b/src/pug/templates/control-view.pug
index 7fae77a..7c08bf5 100644
--- a/src/pug/templates/control-view.pug
+++ b/src/pug/templates/control-view.pug
@@ -134,7 +134,7 @@ script#control-view-template(type="text/x-template")
       div(slot="body")
         .pure-form
           p Could not find the probe block during probing!
-          p Make sure the bit is within 1" / 25.4mm of the probe block, and try again.
+          p Make sure the tip of the bit is about 1/4" (~6mm) above the probe block, and try again.
 
       div(slot="footer")
         button.pure-button.button-success(@click=`hide_probe_failed_modal()`)