diff --git a/.github/workflows/run-all-tests.yml b/.github/workflows/run-all-tests.yml
index b3e99c9..5a02eda 100644
--- a/.github/workflows/run-all-tests.yml
+++ b/.github/workflows/run-all-tests.yml
@@ -30,7 +30,7 @@ jobs:
       - name: Build the docker-compose stack
         run: docker-compose up -d --build
       - name: Run test suite on Debian
-      run: test/run-test.sh debian
+        run: test/run-test.sh debian
   test-duckdns:
     runs-on: ubuntu-latest
     steps:
diff --git a/test/run-test.sh b/test/run-test.sh
index 14ead43..76aae16 100755
--- a/test/run-test.sh
+++ b/test/run-test.sh
@@ -21,9 +21,10 @@ else
 fi
 
 docker build --rm -f "test/Dockerfile-$OS" -t "getssl-$OS" .
+# shellcheck disable=SC2086
 docker run \
   --env GETSSL_HOST="$OS.getssl.test" \
-  -v $(pwd):/getssl \
+  -v "$(pwd)":/getssl \
   --rm \
   --network getssl_acmenet\
   --network-alias $ALIAS \