diff --git a/integtest/change_rate_test.py b/integtest/change_rate_test.py
index 9e6b8a9a..96ecec01 100644
--- a/integtest/change_rate_test.py
+++ b/integtest/change_rate_test.py
@@ -75,16 +75,9 @@
     ],
 }
 
-# The next three variable declarations *must* be present as globals in the test
-# file. They're read by the "fixtures" in conftest.py to determine how
-# to run the config generation and drunc
 
-# The arguments to pass to the config generator, excluding the json
-# output directory (the test framework handles that)
-
-object_databases = ["config/daqsystemtest/integrationtest-objects.data.xml"]
-
-conf_dict = data_classes.drunc_config()
+conf_dict = data_classes.integtest_params_for_generated_dunedaq_config()
+conf_dict.object_databases = ["config/daqsystemtest/integrationtest-objects.data.xml"]
 conf_dict.dro_map_config.n_streams = number_of_data_producers
 conf_dict.op_env = "integtest"
 conf_dict.config_session_name = "changerate"