diff --git a/.changeset/rude-stingrays-fry.md b/.changeset/rude-stingrays-fry.md
new file mode 100644
index 0000000000..53eb404775
--- /dev/null
+++ b/.changeset/rude-stingrays-fry.md
@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Added missing "loading" attribute to IFrameHTMLAttributes
diff --git a/packages/astro/astro-jsx.d.ts b/packages/astro/astro-jsx.d.ts
index 59ef899f2b..ccbb1833bf 100644
--- a/packages/astro/astro-jsx.d.ts
+++ b/packages/astro/astro-jsx.d.ts
@@ -666,6 +666,7 @@ declare namespace astroHTML.JSX {
 		/** @deprecated */
 		frameborder?: number | string | undefined | null;
 		height?: number | string | undefined | null;
+		loading?: 'eager' | 'lazy' | undefined | null;
 		/** @deprecated */
 		marginheight?: number | string | undefined | null;
 		/** @deprecated */
@@ -679,6 +680,7 @@ declare namespace astroHTML.JSX {
 		src?: string | undefined | null;
 		srcdoc?: string | undefined | null;
 		width?: number | string | undefined | null;
+		
 	}
 
 	interface ImgHTMLAttributes extends HTMLAttributes {