diff --git a/.github/actions/test_action/action.yml b/.github/actions/test_action/action.yml
index 765e59eb..aced94d5 100644
--- a/.github/actions/test_action/action.yml
+++ b/.github/actions/test_action/action.yml
@@ -40,9 +40,31 @@ runs:
         -DCMAKE_BUILD_TYPE=${{ inputs.build_type }}
         -DBIT7Z_BUILD_TESTS=ON
         -DBIT7Z_ENABLE_SANITIZERS=ON
-        -DBIT7Z_7ZIP_VERSION=${{ inputs.sevenzip_version }}
+        -DBIT7Z_7ZIP_VERSION="${{ inputs.sevenzip_version }}"
         ${{ inputs.build_flags }}
         -S ${{ github.workspace }}
+        
+    - name: Build 7z.so for tests (Ubuntu)
+      shell: bash
+      if: runner.os == 'Linux'
+      run: |
+        git clone --depth 1 https://github.com/rikyoz/7-Zip ${{ github.workspace }}/../7-zip
+        git -C ${{ github.workspace }}/../7-zip fetch --tags
+        git -C ${{ github.workspace }}/../7-zip checkout v${{ inputs.sevenzip_version }}
+        cd ${{ github.workspace }}/../7-zip/CPP/7zip/Bundles/Format7zF/
+        make -j -f ../../cmpl_gcc.mak
+        cp b/g/7z.so ${{ github.workspace }}/bin/x64/7z.so
+        
+    - name: Build 7z.so for tests (macOS)
+      shell: bash
+      if: runner.os == 'macOS'
+      run: |
+        git clone --depth 1 https://github.com/rikyoz/7-Zip ${{ github.workspace }}/../7-zip
+        git -C ${{ github.workspace }}/../7-zip fetch --tags
+        git -C ${{ github.workspace }}/../7-zip checkout v${{ inputs.sevenzip_version }}
+        cd ${{ github.workspace }}/../7-zip/CPP/7zip/Bundles/Format7zF/
+        make -j -f ../../cmpl_mac_x64.mak
+        cp b/m_x64/7z.so ${{ github.workspace }}/bin/x64/7z.so
 
     - name: Build bit7z
       shell: ${{ inputs.shell }}
diff --git a/.github/workflows/test_macos.yml b/.github/workflows/test_macos.yml
index 38351828..5871c11b 100644
--- a/.github/workflows/test_macos.yml
+++ b/.github/workflows/test_macos.yml
@@ -22,17 +22,6 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
-        
-    - name: Build 7z.so for tests
-      shell: bash
-      run: |
-        mkdir -p ${{ github.workspace }}/bin/x64/
-        git clone --depth 1 https://github.com/rikyoz/7-Zip ${{ github.workspace }}/../7-zip
-        git -C ${{ github.workspace }}/../7-zip fetch --tags
-        git -C ${{ github.workspace }}/../7-zip checkout v${{ matrix.bit7z_7zip_version }}
-        cd ${{ github.workspace }}/../7-zip/CPP/7zip/Bundles/Format7zF/
-        make -j -f ../../cmpl_mac_x64.mak
-        cp b/m_x64/7z.so ${{ github.workspace }}/bin/x64/7z.so
 
     - name: Building and testing bit7z
       uses: ./.github/actions/test_action
diff --git a/.github/workflows/test_ubuntu.yml b/.github/workflows/test_ubuntu.yml
index c3537e02..1d83af92 100644
--- a/.github/workflows/test_ubuntu.yml
+++ b/.github/workflows/test_ubuntu.yml
@@ -31,22 +31,11 @@ jobs:
           - c_compiler: gcc
             bit7z_link_libcpp: ON
 
-    steps:     
-    - name: Build 7z.so for tests
-      shell: bash
-      run: |
-        mkdir -p ${{ github.workspace }}/bin/x64/
-        git clone --depth 1 https://github.com/rikyoz/7-Zip ${{ github.workspace }}/../7-zip
-        git -C ${{ github.workspace }}/../7-zip fetch --tags
-        git -C ${{ github.workspace }}/../7-zip checkout v${{ matrix.bit7z_7zip_version }}
-        cd ${{ github.workspace }}/../7-zip/CPP/7zip/Bundles/Format7zF/
-        make -j -f ../../cmpl_gcc.mak
-        cp b/g/7z.so ${{ github.workspace }}/bin/x64/7z.so
-    
+    steps:
     - uses: actions/checkout@v3
 
-    - uses: ./.github/actions/test_action
-      name: Building and testing bit7z
+    - name: Building and testing bit7z
+      uses: ./.github/actions/test_action
       with:
         c_compiler: ${{ matrix.c_compiler }}
         cpp_compiler: ${{ matrix.cpp_compiler }}