diff --git a/panda/src/collide/collisionPolygon.cxx b/panda/src/collide/collisionPolygon.cxx
index e9d71b50de..bdcb7a2dc9 100644
--- a/panda/src/collide/collisionPolygon.cxx
+++ b/panda/src/collide/collisionPolygon.cxx
@@ -424,6 +424,7 @@ test_intersection_from_ray(CollisionHandler *record,
   PT(CollisionEntry) new_entry = new CollisionEntry(entry);
 
   new_entry->set_into_intersection_point(plane_point);
+  new_entry->set_into_surface_normal(get_normal());
 
   record->add_entry(new_entry);
   return 1;
@@ -474,6 +475,7 @@ test_intersection_from_segment(CollisionHandler *record,
   PT(CollisionEntry) new_entry = new CollisionEntry(entry);
 
   new_entry->set_into_intersection_point(plane_point);
+  new_entry->set_into_surface_normal(get_normal());
 
   record->add_entry(new_entry);
   return 1;