diff --git a/gems/aws-sdk-s3/lib/aws-sdk-s3/plugins/http_200_errors.rb b/gems/aws-sdk-s3/lib/aws-sdk-s3/plugins/http_200_errors.rb
index 605d3359c07..84ea5ca21f3 100644
--- a/gems/aws-sdk-s3/lib/aws-sdk-s3/plugins/http_200_errors.rb
+++ b/gems/aws-sdk-s3/lib/aws-sdk-s3/plugins/http_200_errors.rb
@@ -42,7 +42,7 @@ def members_in_body?(output)
 
           def check_for_error(context)
             xml = context.http_response.body_contents
-            if xml.match(/\?>\n<Error>/)
+            if xml.match(/\?>\s*<Error>/)
               error_code = xml.match(/<Code>(.+?)<\/Code>/)[1]
               error_message = xml.match(/<Message>(.+?)<\/Message>/)[1]
               S3::Errors.error_class(error_code).new(context, error_message)