diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 16b3ee9d..4ce39e3d 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -82,6 +82,12 @@ jobs:
         find $BUILD_PREFIX/lib/clapper-0.0/ -name '*\.dll' -type f -exec ldd "{}" \; | grep '\/mingw.*\.dll' -o | xargs -I{} cp -n "{}" $BUILD_PREFIX/bin
         find $BUILD_PREFIX/lib/gstreamer-1.0/ -name '*\.dll' -type f -exec ldd "{}" \; | grep '\/mingw.*\.dll' -o | xargs -I{} cp -n "{}" $BUILD_PREFIX/bin
         find $BUILD_PREFIX/lib/gio/ -name '*\.dll' -type f -exec ldd "{}" \; | grep '\/mingw.*\.dll' -o | xargs -I{} cp -n "{}" $BUILD_PREFIX/bin
+    - name: Cleanup
+      run: |
+        BUILD_PREFIX="$GITHUB_WORKSPACE/clapper-win-${{ matrix.arch }}"
+
+        rm -rf $BUILD_PREFIX/include
+        rm -rf $BUILD_PREFIX/lib/pkgconfig
     - name: Installer
       uses: Minionguyjpro/Inno-Setup-Action@v1.2.5
       with: