diff --git a/.dd4hep-ci.d/compile_and_test.sh b/.dd4hep-ci.d/compile_and_test.sh
index acceb63f0bc43d839fa9e30c2f148337d8e291ca..53dd616283d8c5e0edb7c1cebb1906dd7192027f 100755
--- a/.dd4hep-ci.d/compile_and_test.sh
+++ b/.dd4hep-ci.d/compile_and_test.sh
@@ -13,7 +13,7 @@ cmake -GNinja -DDD4HEP_USE_GEANT4=ON \
     -DDD4HEP_DEBUG_CMAKE=ON \
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_CXX_FLAGS="-fdiagnostics-color=always -Werror"  \
-    -DCMAKE_CXX_STANDARD=${STANDARD} .. && \
+    -DCMAKE_CXX_STANDARD=${STANDARD} ${CMAKE_ARGS} .. && \
 ninja && \
 ninja install && \
 . ../bin/thisdd4hep.sh && \
diff --git a/.travis.yml b/.travis.yml
index 4389df0b3b6ebd50da8f6a77d9e902c127de9c68..ef9a75c55ea05777cd6cf9023ae5749031f37a06 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,7 @@ language: cpp
 
 env:
   - COMPILER=gcc;   LCG_RELEASE=LCG_96b; STANDARD=17; COMPILER_VERSION=gcc8; PYTHON_CHECK="no"
+  - COMPILER=gcc;   LCG_RELEASE=LCG_96b; STANDARD=17; COMPILER_VERSION=gcc8; PYTHON_CHECK="no"; CMAKE_ARGS="-DBUILD_SHARED_LIBS=OFF"
   - COMPILER=gcc;   LCG_RELEASE=LCG_96python3; STANDARD=17; COMPILER_VERSION=gcc8; PYTHON_CHECK="no"
   - COMPILER=clang; LCG_RELEASE=LCG_96b; STANDARD=17; COMPILER_VERSION=clang8; PYTHON_CHECK="no"
   - COMPILER=gcc;   LCG_RELEASE=LCG_96b; STANDARD=14; COMPILER_VERSION=gcc62; PYTHON_CHECK="no"
@@ -58,7 +59,7 @@ install:
 
 # command to run tests
 script:
-  - docker run -ti --name CI_container -v $PKGDIR:/DD4hep -e COMPILER_TYPE=$COMPILER -e LCG_RELEASE=${LCG_RELEASE} -e STANDARD=${STANDARD} -e COMPILER_VERSION=${COMPILER_VERSION} ${CVMFS_REPOS} -d clicdp/cc7-lcg /bin/bash
+  - docker run -ti --name CI_container -v $PKGDIR:/DD4hep -e COMPILER_TYPE=$COMPILER -e LCG_RELEASE=${LCG_RELEASE} -e STANDARD=${STANDARD} -e COMPILER_VERSION=${COMPILER_VERSION} -e CMAKE_ARGS=${CMAKE_ARGS} ${CVMFS_REPOS} -d clicdp/cc7-lcg /bin/bash
   - if [[ "$PYTHON_CHECK" == "yes" ]];
     then docker exec -ti CI_container /bin/bash -c "./DD4hep/.dd4hep-ci.d/runPythonChecks.sh";
     else docker exec -ti CI_container /bin/bash -c "./DD4hep/.dd4hep-ci.d/compile_and_test.sh";