diff --git a/components/script/dom/htmliframeelement.rs b/components/script/dom/htmliframeelement.rs
index b7540344c6a..658961a1725 100644
--- a/components/script/dom/htmliframeelement.rs
+++ b/components/script/dom/htmliframeelement.rs
@@ -76,6 +76,7 @@ pub struct HTMLIFrameElement {
sandbox_allowance: Cell