diff --git a/tests/toranj/test-023-multicast-traffic.py b/tests/toranj/test-023-multicast-traffic.py
index 9217f75ec..ec1670411 100644
--- a/tests/toranj/test-023-multicast-traffic.py
+++ b/tests/toranj/test-023-multicast-traffic.py
@@ -79,7 +79,7 @@ def send_mcast(
     )
     recvers = [node.prepare_rx(sender) for node in recving_nodes]
     listeners = [
-        node.preapre_listener(sender.dst_port, timeout=0.5)
+        node.prepare_listener(sender.dst_port, timeout=0.5)
         for node in non_recving_nodes
     ]
 
diff --git a/tests/toranj/wpan.py b/tests/toranj/wpan.py
index 50450e90d..410d93842 100644
--- a/tests/toranj/wpan.py
+++ b/tests/toranj/wpan.py
@@ -792,7 +792,7 @@ class Node(object):
             sender.count)
         return receiver
 
-    def preapre_listener(self, local_port, timeout=1):
+    def prepare_listener(self, local_port, timeout=1):
         """Prepares a listener (an `AsyncReceiver`) listening on the given `local_port` for given `timeout` (sec)"""
         receiver = self._get_receiver(local_port)
         receiver._set_listen_timeout(timeout)