diff --git a/hphp/test/slow/concat/1577.php.expect b/hphp/test/slow/concat/1577.php.expect
index 1b06ec1a0..2c7271cd4 100644
--- a/hphp/test/slow/concat/1577.php.expect
+++ b/hphp/test/slow/concat/1577.php.expect
@@ -1,5 +1,5 @@
 	
-
+
 \a
 \b