diff --git a/src/components/script/dom/bindings/codegen/HTMLDocument.webidl b/src/components/script/dom/bindings/codegen/HTMLDocument.webidl
index 532da6cf780..db7d2522474 100644
--- a/src/components/script/dom/bindings/codegen/HTMLDocument.webidl
+++ b/src/components/script/dom/bindings/codegen/HTMLDocument.webidl
@@ -5,7 +5,6 @@
  */
 
 interface Selection;
-interface HTMLHeadElement;
 
 [OverrideBuiltins]
 interface HTMLDocument : Document {