diff --git a/.docker/Dockerfile b/.docker/Dockerfile
index 4fffb0f8762f79fcb95e960329ccc6d9e4e1c5b3..f6b397ede56bd77ed1e22dca9ac480461822e144 100644
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@@ -19,4 +19,4 @@ RUN apt-get install -y openjdk-11-jdk-headless
 
 CMD ls -la && cd build/ && /wait-for-it.sh caosdb-server:10443 -t 500 -- \
     # ... and run tests
-    ctest
+    cmake .. && cmake --build . && ctest