diff --git a/wp-admin/edit-form-advanced.php b/wp-admin/edit-form-advanced.php
index d15b9b5c83..ca74c3da39 100644
--- a/wp-admin/edit-form-advanced.php
+++ b/wp-admin/edit-form-advanced.php
@@ -59,7 +59,7 @@ $messages['page'] = array(
 	 9 => sprintf( __('Page scheduled for: <strong>%1$s</strong>. <a target="_blank" href="%2$s">Preview page</a>'), date_i18n( __( 'M j, Y @ G:i' ), strtotime( $post->post_date ) ), esc_url( get_permalink($post_ID) ) ),
 	10 => sprintf( __('Page draft updated. <a target="_blank" href="%s">Preview page</a>'), esc_url( add_query_arg( 'preview', 'true', get_permalink($post_ID) ) ) ),
 );
-$messages['attachment'] = array_fill( 1, 10, __( 'Media attachment updated' ) ); // Hack, for now.
+$messages['attachment'] = array_fill( 1, 10, __( 'Media attachment updated.' ) ); // Hack, for now.
 
 $messages = apply_filters( 'post_updated_messages', $messages );