diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3b9d885..457f6dd 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -68,6 +68,8 @@ jobs:
         env:
           DEPLOY: cloud-init
           UBUNTU_VERSION: ${{ matrix.UBUNTU_VERSION }}
+          REPOSITORY: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name || github.repository }}
+          BRANCH: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.ref || github.ref }}
         run: |
           ssh-keygen -f ~/.ssh/id_rsa -t rsa -N ''
           # sed -i "s/^reduce_mtu:\s0$/reduce_mtu: 80/" config.cfg
diff --git a/tests/pre-deploy.sh b/tests/pre-deploy.sh
index dc51008..e6cee52 100755
--- a/tests/pre-deploy.sh
+++ b/tests/pre-deploy.sh
@@ -8,8 +8,8 @@ tar xf $HOME/lxc/cache.tar -C / || echo "Didn't extract cache."
 cp -f tests/lxd-bridge /etc/default/lxd-bridge
 cp -f tests/algo.conf /etc/default/algo.conf
 
-export REPOSITORY=${GITHUB_REPOSITORY}
-export BRANCH=${GITHUB_REF#refs/heads/}
+export REPOSITORY=${REPOSITORY:-${GITHUB_REPOSITORY}}
+export BRANCH=${BRANCH:-${GITHUB_REF#refs/heads/}}
 
 if [[ "$DEPLOY" == "cloud-init" ]]; then
   bash tests/cloud-init.sh | lxc profile set default user.user-data -