diff --git a/example/ck_tile/18_hstu_attention/README.md b/example/ck_tile/18_hstu_attention/README.md
index 2dfe038d5f..10e692df00 100644
--- a/example/ck_tile/18_hstu_attention/README.md
+++ b/example/ck_tile/18_hstu_attention/README.md
@@ -13,8 +13,8 @@
    ``` bash
    #> mkdir build
    #> cd build
-   #> ../script/cmake-ck-dev.sh .. gfx942              ; use #> rocminfo |grep "gfx"   to check your gpu arch
-   #> make -j tile_example_hstu_attention
+   #> ../script/cmake-ck-dev.sh .. gfx942 -G Ninja              ; use #> rocminfo |grep "gfx"   to check your gpu arch
+   #> ninja tile_example_hstu_attention                         ; or using make -j tile_example_hstu_attention                       ; 
    ```
 
 ## test/verify
diff --git a/example/ck_tile/18_hstu_attention/example_hstu_attention.cpp b/example/ck_tile/18_hstu_attention/example_hstu_attention.cpp
index da579605c1..def95129ab 100644
--- a/example/ck_tile/18_hstu_attention/example_hstu_attention.cpp
+++ b/example/ck_tile/18_hstu_attention/example_hstu_attention.cpp
@@ -27,11 +27,7 @@
 #include "reference_hstu_attention.hpp"
 
 #include "hstu_attention_util.hpp"
-
-extern void hstu_attention_batched_forward_fp16(HstuAttentionFwdParams& param, hipStream_t stream);
-extern void hstu_attention_batched_forward_bf16(HstuAttentionFwdParams& param, hipStream_t stream);
-extern void hstu_attention_jagged_forward_fp16(HstuAttentionFwdParams& param, hipStream_t stream);
-extern void hstu_attention_jagged_forward_bf16(HstuAttentionFwdParams& param, hipStream_t stream);
+#include "hstu_attention_api.hpp"
 
 template <typename T>
 void dumpBufferToFile(const char* fileName, T* data, size_t dataNumItems)
diff --git a/example/ck_tile/18_hstu_attention/hstu_attention_api.hpp b/example/ck_tile/18_hstu_attention/hstu_attention_api.hpp
new file mode 100644
index 0000000000..b50815b8fb
--- /dev/null
+++ b/example/ck_tile/18_hstu_attention/hstu_attention_api.hpp
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2025, Advanced Micro Devices, Inc. All rights reserved.
+
+#pragma once
+
+#include <ck_tile/core.hpp>
+
+#include "hstu_attention_params.hpp"
+
+extern void hstu_attention_batched_forward_fp16(HstuAttentionFwdParams& param, hipStream_t stream);
+extern void hstu_attention_batched_forward_bf16(HstuAttentionFwdParams& param, hipStream_t stream);
+extern void hstu_attention_jagged_forward_fp16(HstuAttentionFwdParams& param, hipStream_t stream);
+extern void hstu_attention_jagged_forward_bf16(HstuAttentionFwdParams& param, hipStream_t stream);