diff --git a/contributing/samples/a2a_basic/agent.py b/contributing/samples/a2a_basic/agent.py
index 49e542d1..835821a0 100755
--- a/contributing/samples/a2a_basic/agent.py
+++ b/contributing/samples/a2a_basic/agent.py
@@ -88,7 +88,7 @@ prime_agent = RemoteA2aAgent(
     name="prime_agent",
     description="Agent that handles checking if numbers are prime.",
     agent_card=(
-        f"http://localhost:8001/a2a/check_prime_agent{AGENT_CARD_WELL_KNOWN_PATH}"
+        f"http://localhost:8001/a2a/check_prime_agent/.well-known/agent-card.json"
     ),
 )
 
diff --git a/contributing/samples/a2a_root/agent.py b/contributing/samples/a2a_root/agent.py
index c913a6fa..6667de00 100755
--- a/contributing/samples/a2a_root/agent.py
+++ b/contributing/samples/a2a_root/agent.py
@@ -20,5 +20,5 @@ root_agent = RemoteA2aAgent(
     description=(
         "Helpful assistant that can roll dice and check if numbers are prime."
     ),
-    agent_card=f"http://localhost:8001/{AGENT_CARD_WELL_KNOWN_PATH}",
+    agent_card=f"http://localhost:8001{AGENT_CARD_WELL_KNOWN_PATH}",
 )