diff --git a/src/amd/vulkan/bvh/encode.h b/src/amd/vulkan/bvh/encode.h
index 25abeb2ac8d..98de5603f01 100644
--- a/src/amd/vulkan/bvh/encode.h
+++ b/src/amd/vulkan/bvh/encode.h
@@ -17,10 +17,12 @@ radv_encode_triangle_gfx10_3(VOID_REF dst_addr, vk_ir_triangle_node src)
 {
    REF(radv_bvh_triangle_node) dst = REF(radv_bvh_triangle_node)(dst_addr);
 
+   bool opaque = (src.geometry_id_and_flags & VK_GEOMETRY_OPAQUE) != 0;
+
    DEREF(dst).coords = src.coords;
    DEREF(dst).triangle_id = src.triangle_id;
    DEREF(dst).geometry_id_and_flags = src.geometry_id_and_flags;
-   DEREF(dst).id = 9;
+   DEREF(dst).id = 9 | (opaque ? 128 : 0);
 }
 
 void