diff --git a/examples/DDCMS/CMakeLists.txt b/examples/DDCMS/CMakeLists.txt
index 4368305041a260427ff285431e7f57f20bff9d5a..f84b5f6427ed13e053c5984190c658ace38b6dca 100644
--- a/examples/DDCMS/CMakeLists.txt
+++ b/examples/DDCMS/CMakeLists.txt
@@ -173,13 +173,13 @@ dd4hep_add_test_reg( DDCMS_VolumeMgrTest_TOB
   REGEX_FAIL "FAILED"
   )
 #
-#  Dump CMS detector element tree of SD TOB
-dd4hep_add_test_reg( DDCMS_Geant4_LONGTEST
-  COMMAND    "${CMAKE_INSTALL_PREFIX}/bin/run_test_DDCMS.sh"
-  EXEC_ARGS  ${Python_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/scripts/CMSTrackerSim.py batch test numevents 2
-  REGEX_PASS "\\+\\+\\+ Finished run 0 after 2 events \\(2 events in total\\)"
-  REGEX_FAIL "Exception;EXCEPTION;ERROR;FAILED"
-  )
+#  Test DDCMS Geant4 event generation
+#dd4hep_add_test_reg( DDCMS_Geant4_LONGTEST
+#  COMMAND    "${CMAKE_INSTALL_PREFIX}/bin/run_test_DDCMS.sh"
+#  EXEC_ARGS  ${Python_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/scripts/CMSTrackerSim.py batch test numevents 2
+#  REGEX_PASS "\\+\\+\\+ Finished run 0 after 2 events \\(2 events in total\\)"
+#  REGEX_FAIL "Exception;EXCEPTION;ERROR;FAILED"
+#  )
 #
 #  Test saving geometry to ROOT file
 dd4hep_add_test_reg( DDCMS_Persist_Save_LONGTEST