diff --git a/docs/projects/red-light-green-light.md b/docs/projects/red-light-green-light.md
index 904166e3..f6c3068f 100644
--- a/docs/projects/red-light-green-light.md
+++ b/docs/projects/red-light-green-light.md
@@ -149,12 +149,12 @@ At all times, gravity is applied to the @boardname@, so the acceleration strengt
 If the acceleration strength is far from that value, say ``1100`` or ``900``, we can assume that the player is moving. To compute this we use the formula:
 
 ```
-moving = | acc strength - 1000 | > 1000
+moving = | acc strength - 1000 | > 100
 ```
 
 Now that we know the math for it, we can turn this into code.
 
-```block
+```blocks
 let REDLIGHT = 0
 let state = 0
 let GREENLIGHT = 0