diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 53fe33d07..8869962db 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -15,13 +15,19 @@ jobs:
       || (github.event.pull_request.head.repo.id != github.event.pull_request.base.repo.id)
     name: Build .zip
     runs-on: windows-latest
+    defaults:
+      run:
+        shell: msys2 {0}
     steps:
       -
         uses: msys2/setup-msys2@v2
         with:
+          release: false
+          update: false
           path-type: inherit
           install: >-
             zip
+            rsync
       -
         name: Checkout repository
         uses: actions/checkout@v3
@@ -35,16 +41,17 @@ jobs:
             src/bin/doc/package-lock.json
       -
         name: Install all dependencies and symlink for ep_etherpad-lite
-        shell: msys2 {0}
-        run: src/bin/installDeps.sh
+        run: |
+          set MSYSTEM=winsymlinks:lnk
+          src/bin/installDeps.sh
       -
         name: Run the backend tests
-        shell: msys2 {0}
         run: cd src && npm test
       -
         name: Build the .zip
-        shell: msys2 {0}
-        run: src/bin/buildForWindows.sh
+        run: |
+          set MSYSTEM=winsymlinks:lnk
+          src/bin/buildForWindows.sh
       -
         name: Archive production artifacts
         uses: actions/upload-artifact@v3
diff --git a/src/bin/buildForWindows.sh b/src/bin/buildForWindows.sh
index 4b7b75761..6093e03b5 100755
--- a/src/bin/buildForWindows.sh
+++ b/src/bin/buildForWindows.sh
@@ -20,7 +20,7 @@ try cd "${workdir}"
 [ -f src/package.json ] || fatal "failed to cd to etherpad root directory"
 
 # See https://github.com/msys2/MSYS2-packages/issues/1216
-export MSYS=winsymlinks:lnk
+export MSYSTEM=winsymlinks:lnk
 
 OUTPUT=${workdir}/etherpad-win.zip
 
@@ -29,10 +29,12 @@ trap 'exit 1' HUP INT TERM
 trap 'log "cleaning up..."; try cd / && try rm -rf "${TMP_FOLDER}"' EXIT
 
 log "create a clean environment in $TMP_FOLDER..."
-try git archive --format=tar HEAD | (try cd "${TMP_FOLDER}" && try tar xf -) \
+try export GIT_WORK_TREE=${TMP_FOLDER}; git checkout HEAD -f \
     || fatal "failed to copy etherpad to temporary folder"
 try mkdir "${TMP_FOLDER}"/.git
 try git rev-parse HEAD >${TMP_FOLDER}/.git/HEAD
+try cp -r ./src/node_modules "${TMP_FOLDER}"/src/node_modules
+
 try cd "${TMP_FOLDER}"
 [ -f src/package.json ] || fatal "failed to copy etherpad to temporary folder"