diff --git a/ansible/roles/test/files/acstests/py3/lag_test.py b/ansible/roles/test/files/acstests/py3/lag_test.py
index 61cc1e4366f..3786bf30e7d 100644
--- a/ansible/roles/test/files/acstests/py3/lag_test.py
+++ b/ansible/roles/test/files/acstests/py3/lag_test.py
@@ -117,7 +117,7 @@ def getMedianInterval(self, masked_exp_pkt):
 
         # Get the median
         intervals.sort()
-        current_pkt_timing = intervals[self.interval_count / 2]
+        current_pkt_timing = intervals[int(self.interval_count / 2)]
         return current_pkt_timing
 
     def runTest(self):
diff --git a/tests/pc/test_lag_2.py b/tests/pc/test_lag_2.py
index 6dcc400e9a2..943d79afbbd 100644
--- a/tests/pc/test_lag_2.py
+++ b/tests/pc/test_lag_2.py
@@ -116,7 +116,8 @@ def __verify_lag_lacp_timing(self, lacp_timer, exp_iface):
             'ether_type': 0x8809,
             'interval_count': 3
         }
-        ptf_runner(self.ptfhost, 'acstests', "lag_test.LacpTimingTest", '/root/ptftests', params=params)
+        ptf_runner(self.ptfhost, 'acstests', "lag_test.LacpTimingTest",
+                   '/root/ptftests', params=params, is_python3=True)
 
     def __verify_lag_minlink(self, host, lag_name, lag_facts,
                              neighbor_intf, deselect_time, wait_timeout=30):