diff --git a/.github/workflows/protobuf.yml b/.github/workflows/protobuf.yml
index c719a68ce..9e7822045 100644
--- a/.github/workflows/protobuf.yml
+++ b/.github/workflows/protobuf.yml
@@ -51,6 +51,11 @@ jobs:
     - name: Install proto2cpp
       run: git clone --depth 1 https://github.com/OpenSimulationInterface/proto2cpp.git
 
+    - name: Check Build Setup
+      run: |
+        ( result=0 ; for f in *.proto ; do grep -wq "$f" CMakeLists.txt || { echo "Missing $f in CMakeLists.txt" && let "result++"; } ; done ; exit $result )
+        ( result=0 ; for f in *.proto ; do grep -q "'$f'" setup.py || { echo "Missing $f in setup.py" && let "result++"; } ; done ; exit $result )
+
     - name: Prepare C++ Build
       run: mkdir build