diff --git a/perf/perf_24x7_all_events.py b/perf/perf_24x7_all_events.py
index 7b6df1068..537efe5a0 100755
--- a/perf/perf_24x7_all_events.py
+++ b/perf/perf_24x7_all_events.py
@@ -93,7 +93,7 @@ def setUp(self):
 
         # Collect all hv_24x7 events
         self.list_of_hv_24x7_events = []
-        for lne in process.get_command_output_matching('perf list', 'hv_24x7'):
+        for lne in process.get_command_output_matching("perf list | grep 'hv_24x7' | grep -v 'descriptor'", 'hv_24x7'):
             lne = lne.split(',')[0].split('/')[1]
             self.list_of_hv_24x7_events.append(lne)
 
diff --git a/perf/perf_hv_gpci.py b/perf/perf_hv_gpci.py
index 193f4e996..ec41edd02 100644
--- a/perf/perf_hv_gpci.py
+++ b/perf/perf_hv_gpci.py
@@ -68,7 +68,7 @@ def setUp(self):
         self.list_partition = []
         self.list_hw = []
         self.list_noid = []
-        for line in process.get_command_output_matching('perf list', 'hv_gpci'):
+        for line in process.get_command_output_matching("perf list | grep 'hv_gpci' | grep -v 'descriptor'", 'hv_gpci'):
             line = "%s/%s" % (line.split('/')[0], line.split('/')[1])
             if 'phys_processor_idx' in line:
                 self.list_phys.append(line)