diff --git a/.github/workflows/makefile.yml b/.github/workflows/makefile.yml
new file mode 100644
index 0000000..8883337
--- /dev/null
+++ b/.github/workflows/makefile.yml
@@ -0,0 +1,18 @@
+name: Makefile CI
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Run tests
+      run: make tests
diff --git a/tests/05-cqfd_run_extra_groups b/tests/05-cqfd_run_extra_groups
index c803414..24c52b5 100755
--- a/tests/05-cqfd_run_extra_groups
+++ b/tests/05-cqfd_run_extra_groups
@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 
+set -x
+
 . "$(dirname $0)"/jtest.inc "$1"
 cqfd="$TDIR/.cqfd/cqfd"