diff --git a/awslambdaric/bootstrap.py b/awslambdaric/bootstrap.py
index f54ca1a..794673d 100644
--- a/awslambdaric/bootstrap.py
+++ b/awslambdaric/bootstrap.py
@@ -516,7 +516,9 @@ def run(handler, lambda_runtime_client):
         if error_result is not None:
             from .lambda_literals import lambda_unhandled_exception_warning_message
 
-            logging.warning(lambda_unhandled_exception_warning_message)
+            if os.environ.get("LAMBDA_DISABLE_EXCEPTION_WARNING"):
+                logging.warning(lambda_unhandled_exception_warning_message)
+
             log_error(error_result, log_sink)
             lambda_runtime_client.post_init_error(error_result)