diff --git a/autobrake_test.p8 b/autobrake_test.p8
index 07a9102..9416dae 100644
--- a/autobrake_test.p8
+++ b/autobrake_test.p8
@@ -180,8 +180,8 @@ function brake_dist(v0, brake_max)
  local tri_frames = abs(v0/brake_max)&-1
  local chunks = tri_frames * (tri_frames - 1) >> 1
  local chunk_zone = chunks * brake_max
- local overage = v0 - chunk_zone
- return chunk_zone + overage * (tri_frames + 1) * -sgn(v0), (overage > 0) and tri_frames + 1 or tri_frames
+ local overage = v0 - tri_frames * brake_max
+ return (chunk_zone + overage * (tri_frames + 1)) * -sgn(v0), (overage > 0) and tri_frames + 1 or tri_frames
 end
 
 function constraints:cycle()