diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a376c9ec8d2705855142455124d29c673ad228cc..2baa9099de8e906e5322fe23c9258c1fac2b6686 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -64,7 +64,7 @@ zdc_simulation:
     - sodium
   script:
     - cp NPDet/src/GenericDetectors/calorimeters/compact/elements.xml ./
-    - cp NPDet/src/GenericDetectors/calorimeters/compact/materials.xml ./
+    - cp NPDet/src/GenericDetectors/calorimeters/compact/materials.xml ./.
     - bash calorimeters/run_simulation_zdc.sh
 
 cal_test_1_dummy_test2: