diff --git a/.github/workflows/build_and_deploy.yml b/.github/workflows/build_and_deploy.yml
index 7888e41df..1dfc724b9 100644
--- a/.github/workflows/build_and_deploy.yml
+++ b/.github/workflows/build_and_deploy.yml
@@ -242,15 +242,15 @@ jobs:
         run: cargo build -p voicevox_core_java_api -vv --target ${{ matrix.target }} --release
       - name: Organize artifact
         run: |
-          mkdir -p "artifact/${{ env.ASSET_NAME }}"
+          mkdir -p artifact/${{ env.ASSET_NAME }}/{include,lib}
           case ${{ matrix.c_release_format }} in
             plain-cdylib) feature=VOICEVOX_LOAD_ONNXRUNTIME ;;
             ios-xcframework) feature=VOICEVOX_LINK_ONNXRUNTIME ;;
           esac
           sed 's:^//\(#define '"$feature"'\)$:\1:' crates/voicevox_core_c_api/include/voicevox_core.h \
-            > "artifact/${{ env.ASSET_NAME }}/voicevox_core.h"
-          cp -v target/${{ matrix.target }}/release/*voicevox_core.{dll,so,dylib} "artifact/${{ env.ASSET_NAME }}" || true
-          cp -v target/${{ matrix.target }}/release/voicevox_core.dll.lib "artifact/${{ env.ASSET_NAME }}/voicevox_core.lib" || true
+            > "artifact/${{ env.ASSET_NAME }}/include/voicevox_core.h"
+          cp -v target/${{ matrix.target }}/release/*voicevox_core.{dll,so,dylib} "artifact/${{ env.ASSET_NAME }}/lib" || true
+          cp -v target/${{ matrix.target }}/release/voicevox_core.dll.lib "artifact/${{ env.ASSET_NAME }}/lib/voicevox_core.lib" || true
           cp -v README.md "artifact/${{ env.ASSET_NAME }}/README.txt"
           cp -v LICENSE "artifact/${{ env.ASSET_NAME }}/"
           echo "${{ env.VERSION }}" > "artifact/${{ env.ASSET_NAME }}/VERSION"
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 917aaf3e2..83c43f522 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -201,11 +201,12 @@ jobs:
         run: cargo build -p voicevox_core_c_api --features load-onnxruntime -v
       - name: 必要なfileをunix用exampleのディレクトリに移動させる
         run: |
-          mkdir -p example/cpp/unix/voicevox_core/c_api
+          mkdir -p example/cpp/unix/voicevox_core/c_api/{include,lib}
           sed 's:^//\(#define VOICEVOX_LOAD_ONNXRUNTIME\)$:\1:' \
             crates/voicevox_core_c_api/include/voicevox_core.h \
-            > example/cpp/unix/voicevox_core/c_api/voicevox_core.h
-          cp -v target/debug/libvoicevox_core.{so,dylib} example/cpp/unix/voicevox_core/c_api/ || true
+            > example/cpp/unix/voicevox_core/c_api/include/voicevox_core.h
+          cp -v target/debug/libvoicevox_core.{so,dylib} example/cpp/unix/voicevox_core/c_api/lib/ || true
+          # FIXME: ↓この二つ要らないのでは？
           cp -v target/debug/libonnxruntime.so.* example/cpp/unix/voicevox_core/ || true
           cp -v target/debug/libonnxruntime.*.dylib example/cpp/unix/voicevox_core/ || true
 
diff --git a/example/cpp/unix/CMakeLists.txt b/example/cpp/unix/CMakeLists.txt
index 845e2fe0f..a2ed85322 100644
--- a/example/cpp/unix/CMakeLists.txt
+++ b/example/cpp/unix/CMakeLists.txt
@@ -6,8 +6,8 @@ add_executable(simple_tts simple_tts.cpp)
 set_property(TARGET simple_tts PROPERTY CXX_STANDARD 17)
 
 file(GLOB ONNXRUNTIME_SHARED_LIB ./libonnxruntime.so.* ./libonnxruntime.*.dylib) # TODO: なにこれ
-target_link_directories(simple_tts PRIVATE ./voicevox_core/c_api/)
+target_link_directories(simple_tts PRIVATE ./voicevox_core/c_api/lib/)
 
 
-file(GLOB CORE_LIB ./voicevox_core/c_api/libvoicevox_core.so.* ./voicevox_core/c_api/libvoicevox_core.*.dylib) # TODO: なにこれ
+file(GLOB CORE_LIB ./voicevox_core/c_api/lib/libvoicevox_core.so.* ./voicevox_core/c_api/lib/libvoicevox_core.*.dylib) # TODO: なにこれ
 target_link_libraries(simple_tts voicevox_core)
diff --git a/example/cpp/unix/simple_tts.cpp b/example/cpp/unix/simple_tts.cpp
index 30eac7cad..99140c0cd 100644
--- a/example/cpp/unix/simple_tts.cpp
+++ b/example/cpp/unix/simple_tts.cpp
@@ -3,7 +3,7 @@
 #include <iostream>
 #include <string>
 
-#include "voicevox_core/c_api/voicevox_core.h"
+#include "voicevox_core/c_api/include/voicevox_core.h"
 
 #define STYLE_ID 0
 #define OUTPUT_WAV_NAME "audio.wav"