diff --git a/panda/src/collide/collisionPolygon.cxx b/panda/src/collide/collisionPolygon.cxx
index 7a2e347ae9..2b23793615 100644
--- a/panda/src/collide/collisionPolygon.cxx
+++ b/panda/src/collide/collisionPolygon.cxx
@@ -887,6 +887,7 @@ test_intersection_from_parabola(const CollisionEntry &entry) const {
 
   new_entry->set_surface_normal(normal);
   new_entry->set_surface_point(plane_point);
+  new_entry->set_t(t);
 
   return new_entry;
 }