diff --git a/aws_lambda_env_modeler/modeler.py b/aws_lambda_env_modeler/modeler.py
index 7d2db91..4733603 100644
--- a/aws_lambda_env_modeler/modeler.py
+++ b/aws_lambda_env_modeler/modeler.py
@@ -35,9 +35,9 @@ def init_environment_variables(model: Type[Model]):
     def decorator(lambda_handler_function: Callable):
 
         @wraps(lambda_handler_function)
-        def wrapper(event: Dict[str, Any], context):
+        def wrapper(event: Dict[str, Any], context, **kwargs):
             __parse_model(model)
-            return lambda_handler_function(event, context)
+            return lambda_handler_function(event, context, **kwargs)
 
         return wrapper
 
diff --git a/pyproject.toml b/pyproject.toml
index 3e5ffa6..5f3e3aa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "aws_lambda_env_modeler"
-version = "1.0.3"
+version = "1.0.5"
 description = "AWS-Lambda-Env-Modeler is a Python library designed to simplify the process of managing and validating environment variables in your AWS Lambda functions."
 authors = ["Ran Isenberg"]
 classifiers=[
diff --git a/tests/unit/test_env_vars_parser.py b/tests/unit/test_env_vars_parser.py
index 7b261c3..9342133 100644
--- a/tests/unit/test_env_vars_parser.py
+++ b/tests/unit/test_env_vars_parser.py
@@ -49,3 +49,17 @@ def my_handler(event, context) -> Dict[str, Any]:
         return {}
 
     my_handler({}, None)
+
+
+def test_extended_handler_schema_ok(monkeypatch: pytest.MonkeyPatch):
+    monkeypatch.setenv('POWERTOOLS_SERVICE_NAME', SERVICE_NAME)
+    monkeypatch.setenv('LOG_LEVEL', 'DEBUG')
+    monkeypatch.setenv('REST_API', 'https://www.ranthebuilder.cloud/api')
+
+    endpoint = os.environ['REST_API']
+
+    @init_environment_variables(model=MySchema)
+    def my_handler(event, context, endpoint=None):
+        return endpoint
+
+    assert my_handler({}, None, endpoint=endpoint) == endpoint