diff --git a/example/ck_tile/18_hstu_attention/hstu_attention_fwd_pipeline_default_policy.hpp b/example/ck_tile/18_hstu_attention/hstu_attention_fwd_pipeline_default_policy.hpp
index 0680336351..711ebe86e9 100644
--- a/example/ck_tile/18_hstu_attention/hstu_attention_fwd_pipeline_default_policy.hpp
+++ b/example/ck_tile/18_hstu_attention/hstu_attention_fwd_pipeline_default_policy.hpp
@@ -4,11 +4,8 @@
 #pragma once
 
 #include "ck_tile/core.hpp"
-#include "ck_tile/ops/common/tensor_layout.hpp"
 #include "ck_tile/ops/gemm/block/block_gemm_problem.hpp"
-#include "ck_tile/ops/gemm/pipeline/gemm_pipeline_problem.hpp"
 #include "ck_tile/ops/gemm/pipeline/tile_gemm_shape.hpp"
-#include "ck_tile/ops/gemm/warp/warp_gemm.hpp"
 #include "ck_tile/ops/gemm/warp/warp_gemm_dispatcher.hpp"
 
 #include "ck_tile/ops/gemm/block/block_gemm_areg_bsmem_creg_v2_custom_policy.hpp"