diff --git a/docs/custom-track.md b/docs/custom-track.md
index 4149a7a43..896ca66f5 100644
--- a/docs/custom-track.md
+++ b/docs/custom-track.md
@@ -61,6 +61,7 @@ Note that this doc is a work-in-progress and has been hastily written to provide
 
 **The Laws of SpaghettiKart**
 * Track geography must be a plane, not a box
+  * A flat course with a basic plane (square), needs to be turned into triangules and/or subdivided a few times, otherwise the collision generation will 'wig out', placing the racers incorrectly
 * The starting line must face north
   * In Blender: Positive Green Y Axis
   * In game: Negative Z axis