diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 691e257bf..838eddef0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -411,12 +411,14 @@ jobs:
         run: |
           cp -r ${{ env.INSTALL_DIR }} ${{ env.INSTALL_PORTABLE_DIR }}  # cmake install on Windows is slow, let's just copy instead
           cmake --install ${{ env.BUILD_DIR }} --prefix ${{ env.INSTALL_PORTABLE_DIR }} --component portable
+          cat ${{ env.BUILD_DIR }}/install_manifest_portable.txt >> ${{ env.INSTALL_PORTABLE_DIR }}/manifest.txt 
 
       - name: Package (Windows MSVC, portable)
         if: runner.os == 'Windows' && matrix.msystem == ''
         run: |
           cp -r ${{ env.INSTALL_DIR }} ${{ env.INSTALL_PORTABLE_DIR }}  # cmake install on Windows is slow, let's just copy instead
           cmake --install ${{ env.BUILD_DIR }} --prefix ${{ env.INSTALL_PORTABLE_DIR }} --component portable
+          cat ${{ env.BUILD_DIR }}/install_manifest.txt >> ${{ env.INSTALL_PORTABLE_DIR }}/manifest.txt
 
       - name: Package (Windows, installer)
         if: runner.os == 'Windows'