diff --git a/tests/messages/test_abort.py b/tests/messages/test_abort.py
index c516913..8d3e9e5 100644
--- a/tests/messages/test_abort.py
+++ b/tests/messages/test_abort.py
@@ -23,11 +23,11 @@ def test_parse_with_invalid_min_length():
 
 
 def test_parse_with_invalid_max_length():
-    message = [1, {}, "io.xconn", 4]
+    message = [1, {}, "io.xconn", 4, 5, 6]
     with pytest.raises(ValueError) as exc_info:
         Abort.parse(message)
 
-    assert str(exc_info.value) == f"invalid message length {len(message)}, must be at most 3"
+    assert str(exc_info.value) == f"invalid message length {len(message)}, must be at most 5"
 
 
 def test_parse_with_invalid_message_type():
diff --git a/wampproto/messages/abort.py b/wampproto/messages/abort.py
index 3993810..9ed760b 100644
--- a/wampproto/messages/abort.py
+++ b/wampproto/messages/abort.py
@@ -16,12 +16,22 @@ def details(self):
     def reason(self):
         raise NotImplementedError()
 
+    @property
+    def args(self):
+        raise NotImplementedError()
+
+    @property
+    def kwargs(self):
+        raise NotImplementedError()
+
 
 class AbortFields(IAbortFields):
-    def __init__(self, details: dict, reason: str):
+    def __init__(self, details: dict, reason: str, args: list[Any] | None = None, kwargs: dict[str, Any] | None = None):
         super().__init__()
         self._details = details
         self._reason = reason
+        self._args = args
+        self._kwargs = kwargs
 
     @property
     def details(self) -> dict[str, Any]:
@@ -31,6 +41,14 @@ def details(self) -> dict[str, Any]:
     def reason(self) -> str:
         return self._reason
 
+    @property
+    def args(self) -> list[Any] | None:
+        return self._args
+
+    @property
+    def kwargs(self) -> dict[str, Any] | None:
+        return self._kwargs
+
 
 class Abort(Message):
     TEXT = "ABORT"
@@ -38,11 +56,13 @@ class Abort(Message):
 
     VALIDATION_SPEC = ValidationSpec(
         min_length=3,
-        max_length=3,
+        max_length=5,
         message=TEXT,
         spec={
             1: util.validate_details,
             2: util.validate_reason,
+            3: util.validate_args,
+            4: util.validate_kwargs,
         },
     )
 
@@ -58,6 +78,14 @@ def details(self) -> dict[str, Any]:
     def reason(self) -> str:
         return self._fields.reason
 
+    @property
+    def args(self) -> list[Any] | None:
+        return self._fields.args
+
+    @property
+    def kwargs(self) -> dict[str, Any] | None:
+        return self._fields.kwargs
+
     @classmethod
     def parse(cls, msg: list[Any]) -> Abort:
         f = util.validate_message(msg, cls.TYPE, cls.TEXT, cls.VALIDATION_SPEC)