diff --git a/on-host/test.txt b/on-host/test.txt
index 1115aea1b082ffe3e6ff12754613fd942c094e3a..06aa9e3f82b26a14565b0d6e60d9c26894b6fa9e 100644
--- a/on-host/test.txt
+++ b/on-host/test.txt
@@ -11,3 +11,10 @@
 \ z : 3*t^2
 |
 @ T+10 ~ 1Hz
+|
+# [position.parametric]
+\ x : 0
+\ y : 0
+\ z : 10t
+|
+@ T+20 ~ 10Hz