diff --git a/.changeset/healthy-carpets-deny.md b/.changeset/healthy-carpets-deny.md
new file mode 100644
index 000000000000..8f8db7fa9cd3
--- /dev/null
+++ b/.changeset/healthy-carpets-deny.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: rename form accept-charset attribute
diff --git a/packages/svelte/elements.d.ts b/packages/svelte/elements.d.ts
index 1492f777925d..604241592aff 100644
--- a/packages/svelte/elements.d.ts
+++ b/packages/svelte/elements.d.ts
@@ -996,7 +996,7 @@ export interface HTMLFieldsetAttributes extends HTMLAttributes<HTMLFieldSetEleme
 }
 
 export interface HTMLFormAttributes extends HTMLAttributes<HTMLFormElement> {
-	acceptcharset?: string | undefined | null;
+	'accept-charset'?: 'utf-8' | (string & {}) | undefined | null;
 	action?: string | undefined | null;
 	autocomplete?: AutoFillBase | undefined | null;
 	enctype?: