diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 377ef634841c8837ec92f8e206caa194671ba826..2055eb135a22b32fd03cda80f9950031f6926ca8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -66,7 +66,7 @@ geant4-build:
     - cd geant4
     - git checkout tags/v10.6.0
     - mkdir build ; cd build
-    - cmake -DCMAKE_INSTALL_PREFIX=../../install ../ -DGEANT4_INSTALL_DATA=ON -DGEANT4_USE_GDML=ON -DGEANT4_BUILD_MULTITHREADED=ON
+    - cmake -DCMAKE_INSTALL_PREFIX=../../install ../ -DGEANT4_USE_XM=OFF -DGEANT4_INSTALL_DATA=ON -DGEANT4_USE_GDML=ON -DGEANT4_BUILD_MULTITHREADED=ON
     - make -j$(nproc)
     - make install
   artifacts: