diff --git a/aws-flow/lib/aws/decider/task_poller.rb b/aws-flow/lib/aws/decider/task_poller.rb
index d14eb0e..0ef5860 100644
--- a/aws-flow/lib/aws/decider/task_poller.rb
+++ b/aws-flow/lib/aws/decider/task_poller.rb
@@ -96,6 +96,9 @@ def poll_and_process_single_task
           @logger.info Utilities.workflow_task_to_debug_string("Finished executing task", task, @task_list)
         rescue AWS::SimpleWorkflow::Errors::UnknownResourceFault => e
           @logger.error "Error in the poller, #{e.inspect}"
+        rescue AWS::Errors::MissingCredentialsError => e
+          @logger.error "Error in the poller, #{e.inspect}"
+          raise e
         rescue Exception => e
           @logger.error "Error in the poller, #{e.inspect}"
         end