diff --git a/.docker/Dockerfile b/.docker/Dockerfile
index d49e91c7ed571ef0bbdde02f1ca1b16c851e3a27..c234a0b81d6b7bf810a9d36c1ebc5767c73c0a56 100644
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@@ -21,7 +21,7 @@ RUN apt-get install -y openjdk-11-jdk-headless
 # build and run tests
 CMD mkdir build && \
     cd build && \
-    cmake .. && \
+    cmake -D CMAKE_PREFIX_PATH=/usr/local/lib/libcaosdb/ .. && \
     cmake --build . && \
     /wait-for-it.sh caosdb-server:10443 -t 500 -- \
     ctest
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d46f22681a790f2dbb27205d9bd833a74edbd235..226bfb1bbaff1b1db52903e6db22fefaf31330a2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -116,7 +116,7 @@ build-test:
     - echo $PWD
     - mkdir build
     - cd build
-    - cmake ..
+    - cmake -D CMAKE_PREFIX_PATH=/usr/local/lib/libcaosdb/ ..
     - cmake --build .