diff --git a/samcli/commands/local/lib/local_lambda_service.py b/samcli/commands/local/lib/local_lambda_service.py
index 1c709793dd..0d493c2ff8 100644
--- a/samcli/commands/local/lib/local_lambda_service.py
+++ b/samcli/commands/local/lib/local_lambda_service.py
@@ -14,7 +14,7 @@ class LocalLambdaService:
     that are defined in a SAM file.
     """
 
-    def __init__(self, lambda_invoke_context, port, host, ssl_context):
+    def __init__(self, lambda_invoke_context, port, host, ssl_context=None):
         """
         Initialize the Local Lambda Invoke service.