diff --git a/rtiow/renderer/src/bvh_triangles.rs b/rtiow/renderer/src/bvh_triangles.rs
index 1fe2dc9..67a598b 100644
--- a/rtiow/renderer/src/bvh_triangles.rs
+++ b/rtiow/renderer/src/bvh_triangles.rs
@@ -16,7 +16,6 @@ use crate::{
 struct BVHNode {
     aabb: AABB,
     left_child: usize,
-    right_child: usize,
     first_prim: usize,
     prim_count: usize,
 }
@@ -80,7 +79,6 @@ where
         let root = BVHNode {
             aabb: AABB::new(0f32.into(), 0f32.into()),
             left_child: 0,
-            right_child: 0,
             first_prim: 0,
             prim_count: self.triangles.len() - 1,
         };
@@ -139,18 +137,16 @@ where
 
         // create child nodes
         let left_child_idx = self.bvh_nodes.len();
-        let right_child_idx = self.bvh_nodes.len() + 1;
+        let right_child_idx = left_child_idx + 1;
         let left = BVHNode {
             aabb: AABB::new(0f32.into(), 0f32.into()),
             left_child: 0,
-            right_child: 0,
             first_prim: first_prim,
             prim_count: left_count,
         };
         let right = BVHNode {
             aabb: AABB::new(0f32.into(), 0f32.into()),
             left_child: 0,
-            right_child: 0,
             first_prim: i as usize,
             prim_count: prim_count - left_count,
         };
@@ -158,7 +154,6 @@ where
         self.bvh_nodes.push(right);
         let node = &mut self.bvh_nodes[idx];
         node.left_child = left_child_idx;
-        node.right_child = right_child_idx;
         node.prim_count = 0;
 
         // Recurse