diff --git a/.changeset/light-items-cry.md b/.changeset/light-items-cry.md
new file mode 100644
index 0000000000..d120f94d3c
--- /dev/null
+++ b/.changeset/light-items-cry.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: add bindings generic to legacy class component for backwards compat
diff --git a/packages/svelte/src/index.d.ts b/packages/svelte/src/index.d.ts
index 3955f14dc2..d4f3626e20 100644
--- a/packages/svelte/src/index.d.ts
+++ b/packages/svelte/src/index.d.ts
@@ -44,7 +44,8 @@ type Properties<Props, Slots> = Props &
 export class SvelteComponent<
 	Props extends Record<string, any> = Record<string, any>,
 	Events extends Record<string, any> = any,
-	Slots extends Record<string, any> = any
+	Slots extends Record<string, any> = any,
+	Bindings extends string = string
 > {
 	/** The custom element version of the component. Only present if compiled with the `customElement` compiler option */
 	static element?: typeof HTMLElement;
@@ -79,7 +80,7 @@ export class SvelteComponent<
 	 * Does not exist at runtime.
 	 * ### DO NOT USE!
 	 */
-	$$bindings?: string;
+	$$bindings?: Bindings;
 
 	/**
 	 * @deprecated This method only exists when using one of the legacy compatibility helpers, which
@@ -176,8 +177,9 @@ export interface Component<
 export class SvelteComponentTyped<
 	Props extends Record<string, any> = Record<string, any>,
 	Events extends Record<string, any> = any,
-	Slots extends Record<string, any> = any
-> extends SvelteComponent<Props, Events, Slots> {}
+	Slots extends Record<string, any> = any,
+	Bindings extends string = string
+> extends SvelteComponent<Props, Events, Slots, Bindings> {}
 
 /**
  * @deprecated The new `Component` type does not have a dedicated Events type. Use `ComponentProps` instead.
diff --git a/packages/svelte/types/index.d.ts b/packages/svelte/types/index.d.ts
index 9b5bdd727d..f7b35995d1 100644
--- a/packages/svelte/types/index.d.ts
+++ b/packages/svelte/types/index.d.ts
@@ -41,7 +41,8 @@ declare module 'svelte' {
 	export class SvelteComponent<
 		Props extends Record<string, any> = Record<string, any>,
 		Events extends Record<string, any> = any,
-		Slots extends Record<string, any> = any
+		Slots extends Record<string, any> = any,
+		Bindings extends string = string
 	> {
 		/** The custom element version of the component. Only present if compiled with the `customElement` compiler option */
 		static element?: typeof HTMLElement;
@@ -76,7 +77,7 @@ declare module 'svelte' {
 		 * Does not exist at runtime.
 		 * ### DO NOT USE!
 		 */
-		$$bindings?: string;
+		$$bindings?: Bindings;
 
 		/**
 		 * @deprecated This method only exists when using one of the legacy compatibility helpers, which
@@ -173,8 +174,9 @@ declare module 'svelte' {
 	export class SvelteComponentTyped<
 		Props extends Record<string, any> = Record<string, any>,
 		Events extends Record<string, any> = any,
-		Slots extends Record<string, any> = any
-	> extends SvelteComponent<Props, Events, Slots> {}
+		Slots extends Record<string, any> = any,
+		Bindings extends string = string
+	> extends SvelteComponent<Props, Events, Slots, Bindings> {}
 
 	/**
 	 * @deprecated The new `Component` type does not have a dedicated Events type. Use `ComponentProps` instead.