diff --git a/src/action/systems.rs b/src/action/systems.rs
index 5581cf8..74c1163 100644
--- a/src/action/systems.rs
+++ b/src/action/systems.rs
@@ -27,7 +27,7 @@ fn yaw_to_angle(yaw: f32) -> f32 {
 
 fn rotate_point(pt: &Vec3, rot: &Quat) -> Vec3 {
     // thanks to https://danceswithcode.net/engineeringnotes/quaternions/quaternions.html
-    let [x, y, z] = pt.to_array();
+    let [x, y, z] = pt.normalize().to_array();
     let qpt = Quat::from_xyzw(x, y, z, 0.0);
     // p' = rot^-1 * qpt * rot
     let rot_qpt = rot.inverse() * qpt * *rot;