diff --git a/packages/svelte/elements.d.ts b/packages/svelte/elements.d.ts
index 98b1b24f55..33e5d23f00 100644
--- a/packages/svelte/elements.d.ts
+++ b/packages/svelte/elements.d.ts
@@ -1169,7 +1169,7 @@ export interface HTMLMediaAttributes<T extends HTMLMediaElement> extends HTMLAtt
 	mediagroup?: string | undefined | null;
 	muted?: boolean | undefined | null;
 	playsinline?: boolean | undefined | null;
-	preload?: string | undefined | null;
+	preload?: 'auto' | 'none' | 'metadata' | '' | undefined | null;
 	src?: string | undefined | null;
 	/**
 	 * a value between 0 and 1
@@ -1783,7 +1783,7 @@ export interface HTMLWebViewAttributes extends HTMLAttributes<HTMLElement> {
 	nodeintegration?: boolean | undefined | null;
 	partition?: string | undefined | null;
 	plugins?: boolean | undefined | null;
-	preload?: string | undefined | null;
+	preload?: 'auto' | 'none' | 'metadata' | '' | undefined | null;
 	src?: string | undefined | null;
 	useragent?: string | undefined | null;
 	webpreferences?: string | undefined | null;