diff --git a/ryu/tests/switch/tester.py b/ryu/tests/switch/tester.py
index ba52e52d..2c966242 100644
--- a/ryu/tests/switch/tester.py
+++ b/ryu/tests/switch/tester.py
@@ -749,7 +749,7 @@ class OfTester(app_manager.RyuApp):
         if after_tester_send == before_tester_send:
             log_msg = 'no change in tx_packets on tester.'
         elif after_target_receive == before_target_receive:
-            log_msg = 'no change in rx_packtes on target.'
+            log_msg = 'no change in rx_packets on target.'
         elif test_type == KEY_EGRESS:
             if after_target_send == before_target_send:
                 log_msg = 'no change in tx_packets on target.'