2 files changed, 2 insertions, 0 deletions
diff --git a/bench/libdimension/prtree.c b/bench/libdimension/prtree.c
index 6b0bfdf..c04dd46 100644
--- a/bench/libdimension/prtree.c
+++ b/bench/libdimension/prtree.c
@@ -26,6 +26,7 @@ dmnsn_fake_intersection_fn(const dmnsn_object *object, dmnsn_line line,
                            dmnsn_intersection *intersection)
 {
   intersection->t = (object->bounding_box.min.z - line.x0.z)/line.n.z;
+  intersection->normal = dmnsn_x;
   return true;
 }
 
diff --git a/tests/libdimension/prtree.c b/tests/libdimension/prtree.c
index cf9d4fb..d6f7672 100644
--- a/tests/libdimension/prtree.c
+++ b/tests/libdimension/prtree.c
@@ -33,6 +33,7 @@ dmnsn_fake_intersection_fn(const dmnsn_object *object, dmnsn_line line,
                            dmnsn_intersection *intersection)
 {
   intersection->t = (object->bounding_box.min.z - line.x0.z)/line.n.z;
+  intersection->normal = dmnsn_x;
   ++calls;
   return true;
 }