diff --git a/src/freedreno/vulkan/tu_acceleration_structure.cc b/src/freedreno/vulkan/tu_acceleration_structure.cc
index 5195f2cba8d..819caef50d8 100644
--- a/src/freedreno/vulkan/tu_acceleration_structure.cc
+++ b/src/freedreno/vulkan/tu_acceleration_structure.cc
@@ -231,9 +231,8 @@ encode(VkCommandBuffer commandBuffer,
                               VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(args),
                               &args);
 
-   tu_dispatch_unaligned_indirect(commandBuffer,
-                                  intermediate_header_addr +
-                                  offsetof(struct vk_ir_header, ir_internal_node_count));
+   tu_dispatch_unaligned(commandBuffer,
+                         MAX2(state->leaf_node_count, 1), 1, 1);
 }
 
 static VkResult