diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 220abec30e7d30932403b6bb6363e369c55a1b65..066266ce86f9e98ca5430e91f7978fecc47f3c6e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -83,7 +83,7 @@ centos7-gcc8-Geant10.5-Python3:
     - unset CPATH
     - mkdir build
     - cd build
-    - cmake -GNinja -DDD4HEP_USE_GEANT4=ON -DBoost_NO_BOOST_CMAKE=ON -DDD4HEP_USE_LCIO=ON -DBUILD_TESTING=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=17 ..
+    - cmake -GNinja -DDD4HEP_USE_GEANT4=ON -DBoost_NO_BOOST_CMAKE=ON -DDD4HEP_USE_LCIO=ON -DBUILD_TESTING=ON -DCMAKE_BUILD_TYPE=Release -DDD4HEP_USE_XERCESC=ON -DCMAKE_CXX_STANDARD=17 ..
     - ninja
     - ninja install
     - . ../bin/thisdd4hep.sh