diff --git a/tests/lowlevel/iframe-expected.txt b/tests/lowlevel/iframe-expected.txt
index ca535cec307..003120ff673 100644
--- a/tests/lowlevel/iframe-expected.txt
+++ b/tests/lowlevel/iframe-expected.txt
@@ -11,3 +11,4 @@ layer at (0,0) size 800x188
           text run at (0,0) width 72: "element."
 layer at (250,19) size 300x150
   RenderReplaced {iframe} at (250,19) size 300x150
+