diff --git a/tests/io_task_test.cfg b/tests/io_task_test.cfg
index c9fc2ab..4d78578 100644
--- a/tests/io_task_test.cfg
+++ b/tests/io_task_test.cfg
@@ -1,4 +1,5 @@
 [writetest * 3]
+group_reporting
 numjobs=4
 wait_for_previous
 ramp_time=5
diff --git a/tests/itest.py b/tests/itest.py
index b073879..53c4af3 100644
--- a/tests/itest.py
+++ b/tests/itest.py
@@ -5,6 +5,7 @@
 import logging
 
 from disk_perf_test_tool.tests import disk_test_agent
+from disk_perf_test_tool.tests.io_results_loader import parse_output
 from disk_perf_test_tool.ssh_utils import copy_paths
 from disk_perf_test_tool.utils import run_over_ssh, ssize_to_b
 
@@ -141,7 +142,7 @@
     def on_result(self, code, out_err, cmd):
         if 0 == code:
             try:
-                for data in disk_test_agent.parse_output(out_err):
+                for data in parse_output(out_err):
                     self.on_result_cb(data)
             except Exception as exc:
                 msg_templ = "Error during postprocessing results: {0!r}"