diff --git a/src/intel/vulkan/anv_cmd_buffer.c b/src/intel/vulkan/anv_cmd_buffer.c
index 38eda494354..2115d3e3026 100644
--- a/src/intel/vulkan/anv_cmd_buffer.c
+++ b/src/intel/vulkan/anv_cmd_buffer.c
@@ -459,7 +459,7 @@ anv_cmd_buffer_set_rt_query_buffer(struct anv_cmd_buffer *cmd_buffer,
       if (bo == NULL) {
          struct anv_bo *new_bo;
          VkResult result = anv_device_alloc_bo(device, "RT queries shadow",
-                                               ray_shadow_size,
+                                               1 << shadow_size_log2,
                                                ANV_BO_ALLOC_INTERNAL, /* alloc_flags */
                                                0, /* explicit_address */
                                                &new_bo);