diff --git a/tests/test_frequency_detection.py b/tests/test_frequency_detection.py
index 1124781f..7e18d08a 100644
--- a/tests/test_frequency_detection.py
+++ b/tests/test_frequency_detection.py
@@ -187,7 +187,6 @@ def test_drm_manager_frequency_detection_method1_exception(accelize_drm, conf_js
     driver = accelize_drm.pytest_fpga_driver[0]
     async_cb = async_handler.create()
 
-    conf_json.reset()
     conf_json.reset()
     conf_json['settings']['frequency_detection_period'] = (int)(2**32 / 125000000 * 1000) + 2
     conf_json.save()