diff --git a/wp-includes/ms-files.php b/wp-includes/ms-files.php
index 87fa70f4b9..e5c1db3f89 100644
--- a/wp-includes/ms-files.php
+++ b/wp-includes/ms-files.php
@@ -80,3 +80,4 @@ if ( ( $client_last_modified && $client_etag )
 
 // If we made it this far, just serve the file
 readfile( $file );
+flush();
diff --git a/wp-includes/version.php b/wp-includes/version.php
index ac4784377a..0bb4f21f41 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-alpha-38661';
+$wp_version = '4.7-alpha-38662';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.