diff --git a/packages/html/src/elements.rs b/packages/html/src/elements.rs
index d7db36a04..a42c01950 100644
--- a/packages/html/src/elements.rs
+++ b/packages/html/src/elements.rs
@@ -827,6 +827,7 @@ builder_constructors! {
         decoding: ImageDecoding DEFAULT,
         height: usize DEFAULT,
         ismap: Bool DEFAULT,
+        loading: String DEFAULT,
         src: Uri DEFAULT,
         srcset: String DEFAULT, // FIXME this is much more complicated
         usemap: String DEFAULT, // FIXME should be a fragment starting with '#'