diff --git a/.github/workflows/build-pr.yml b/.github/workflows/build-pr.yml
index a5f69f36..d34d885b 100644
--- a/.github/workflows/build-pr.yml
+++ b/.github/workflows/build-pr.yml
@@ -38,8 +38,24 @@ jobs:
     container:
       image: ghcr.io/surge-synthesizer/sst-dockerimages/ubuntu18_gcc11:main
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
       - name: Build pull request version
         run: |
-          git clone ${{ github.server }}/${{ github.repository }}
-          cmake -S . -B ./build -DCMAKE_BUILD_TYPE=Debug 
-          cmake --build ./build --config Debug --target monique-staged --parallel 3
+          export VUID=$(id -u)
+          export VGID=$(id -g)
+
+          docker pull ghcr.io/surge-synthesizer/sst-dockerimages/ubuntu18_gcc11:main
+          docker create --user $VUID:$VGID --name u18_build --interactive --tty \
+              --volume=`pwd`:/home/build/plugin ghcr.io/surge-synthesizer/sst-dockerimages/ubuntu18_gcc11:main
+          docker start u18_build
+
+          docker exec u18_build bash -c "(cd /home/build/plugin && \
+                                          cmake -S . -B ./build -DCMAKE_BUILD_TYPE=Debug && \
+                                          cmake --build ./build --config Debug --target monique-staged --parallel 3 )"
+          docker stop u18_build_bash
+          ls -al
+