diff --git a/src/components/script/html/hubbub_html_parser.rs b/src/components/script/html/hubbub_html_parser.rs
index ec9e186b51d..66953315fea 100644
--- a/src/components/script/html/hubbub_html_parser.rs
+++ b/src/components/script/html/hubbub_html_parser.rs
@@ -260,6 +260,7 @@ pub fn build_element_from_tag(cx: *JSContext, tag: &str, document: AbstractDocum
     handle_element!(cx, tag, "style",   HTMLStyleElementTypeId, HTMLStyleElement, []);
     handle_element!(cx, tag, "table",   HTMLTableElementTypeId, HTMLTableElement, []);
     handle_element!(cx, tag, "caption", HTMLTableCaptionElementTypeId, HTMLTableCaptionElement, []);
+    handle_element!(cx, tag, "th",      HTMLTableCellElementTypeId, HTMLTableCellElement, []);
     handle_element!(cx, tag, "td",      HTMLTableCellElementTypeId, HTMLTableCellElement, []);
     handle_element!(cx, tag, "col",     HTMLTableColElementTypeId, HTMLTableColElement, []);
     handle_element!(cx, tag, "colgroup",HTMLTableColElementTypeId, HTMLTableColElement, []);