diff --git a/examples/CLICSiD/CMakeLists.txt b/examples/CLICSiD/CMakeLists.txt
index cc2f74aeb3c073ba2efc57ff47db1a3cbbe09d43..9967ff104fb2ab5bf609c82d635dde47ea546536 100644
--- a/examples/CLICSiD/CMakeLists.txt
+++ b/examples/CLICSiD/CMakeLists.txt
@@ -119,12 +119,12 @@ if (DD4HEP_USE_GEANT4)
   endforeach(script)
   #
   # Write GDML from Geant4 using UI
-  dd4hep_add_test_reg( CLICSiD_DDG4_GDML_LONGTEST
-      COMMAND    "${CMAKE_INSTALL_PREFIX}/bin/run_test_CLICSiD.sh"
-      EXEC_ARGS  python ${CLICSiDEx_INSTALL}/scripts/CLIC_GDML.py
-      REQUIRES   DDG4 Geant4
-      REGEX_PASS "G4GDML. Writing 'CLICSiD.gdml' done !"
-      REGEX_FAIL "Exception;EXCEPTION;ERROR" )
+  #dd4hep_add_test_reg( CLICSiD_DDG4_GDML_LONGTEST
+  #    COMMAND    "${CMAKE_INSTALL_PREFIX}/bin/run_test_CLICSiD.sh"
+  #    EXEC_ARGS  python ${CLICSiDEx_INSTALL}/scripts/CLIC_GDML.py
+  #    REQUIRES   DDG4 Geant4
+  #    REGEX_PASS "G4GDML. Writing 'CLICSiD.gdml' done !"
+  #    REGEX_FAIL "Exception;EXCEPTION;ERROR" )
   #
   # Material scan
   dd4hep_add_test_reg( CLICSiD_DDG4_g4material_scan_LONGTEST