diff --git a/src/a2a/_base.py b/src/a2a/_base.py
index 81ce827d..fc100442 100644
--- a/src/a2a/_base.py
+++ b/src/a2a/_base.py
@@ -64,7 +64,7 @@ def __setattr__(self, name: str, value: Any) -> None:
         # Get the map and find the corresponding snake_case field name.
         field_name = type(self)._get_alias_map().get(name)  # noqa: SLF001
 
-        if field_name:
+        if field_name and field_name != name:
             # An alias was used, issue a warning.
             warnings.warn(
                 (
@@ -83,7 +83,7 @@ def __getattr__(self, name: str) -> Any:
         # Get the map and find the corresponding snake_case field name.
         field_name = type(self)._get_alias_map().get(name)  # noqa: SLF001
 
-        if field_name:
+        if field_name and field_name != name:
             # An alias was used, issue a warning.
             warnings.warn(
                 (
diff --git a/tests/test_types.py b/tests/test_types.py
index 3946a4d6..5e693cee 100644
--- a/tests/test_types.py
+++ b/tests/test_types.py
@@ -1552,7 +1552,6 @@ def test_camelCase() -> None:
     )
 
     # Test setting an attribute via camelCase alias
-    # We expect a DeprecationWarning with a specific message
     with pytest.warns(
         DeprecationWarning,
         match="Setting field 'supportsAuthenticatedExtendedCard'",
@@ -1560,7 +1559,6 @@ def test_camelCase() -> None:
         agent_card.supportsAuthenticatedExtendedCard = False
 
     # Test getting an attribute via camelCase alias
-    # We expect another DeprecationWarning with a specific message
     with pytest.warns(
         DeprecationWarning, match="Accessing field 'defaultInputModes'"
     ):