diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 9b4fb8a..cdafadb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -55,6 +55,11 @@ jobs:
           path: .xwin-cache
           key: xwin-win-v1-${{ hashFiles('.xwin-cache/**/*') }}
 
+      - name: Download Windows headers
+        run: ./xwin --arch x86_64 --sdk-version 10.0.22621 --accept-license splat --include-debug-libs
+        if: steps.xwin-cache.outputs.cache-hit != 'true'
+
+
       - name: Download clang-msvc-sdk toolchain
         uses: actions/checkout@v4
         with:
@@ -65,7 +70,7 @@ jobs:
       - name: Install Clang
         run: |
           sudo apt-get update
-          sudo apt-get install -y wget lsb-release software-properties-common gnupg ninja
+          sudo apt-get install -y wget lsb-release software-properties-common gnupg
 
           wget https://apt.llvm.org/llvm.sh
           chmod +x llvm.sh
@@ -88,7 +93,7 @@ jobs:
       
       - name: Configure CMake
         working-directory: ${{github.workspace}}/build
-        run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCMAKE_TOOLCHAIN_FILE=$TOOLCHAIN -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -G Ninja
+        run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCMAKE_TOOLCHAIN_FILE=$TOOLCHAIN -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
         env:
           SPLAT_DIR: ${{ github.workspace }}/.xwin-cache/splat
           TOOLCHAIN: ${{ github.workspace }}/toolchain/clang-cl-msvc.cmake