diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 935c837d..8d068e05 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -58,7 +58,7 @@ ExternalData_Add_Test( marlinwrapper_tests NAME clicRec COMMAND bash -c "${CMAKE
 add_test( converter_constants bash -c ${CMAKE_CURRENT_SOURCE_DIR}/scripts/converter_constants.sh )
 
 # Test indicating -1 to go over all events
-ExternalData_Add_Test( marlinwrapper_tests NAME all_events_bounds COMMAND ${K4RUN} ${CMAKE_CURRENT_SOURCE_DIR}/gaudi_opts/simple_processors.py --num-events=1 --LcioEvent.Files DATA{${PROJECT_SOURCE_DIR}/test/input_files/muons.slcio})
+ExternalData_Add_Test( marlinwrapper_tests NAME all_events_bounds COMMAND ${K4RUN} ${CMAKE_CURRENT_SOURCE_DIR}/gaudi_opts/simple_processors.py --num-events=-1 --LcioEvent.Files DATA{${PROJECT_SOURCE_DIR}/test/input_files/muons.slcio})
 
 # Test putting more events than available, stopping on last available event gracefully
 ExternalData_Add_Test( marlinwrapper_tests NAME over_total_events COMMAND ${K4RUN} ${CMAKE_CURRENT_SOURCE_DIR}/gaudi_opts/simple_processors.py --num-events=15 --LcioEvent.Files DATA{${PROJECT_SOURCE_DIR}/test/input_files/muons.slcio})