diff --git a/packages/svelte/src/server/index.d.ts b/packages/svelte/src/server/index.d.ts
index d5a3b813e6..7eed5ea951 100644
--- a/packages/svelte/src/server/index.d.ts
+++ b/packages/svelte/src/server/index.d.ts
@@ -27,3 +27,5 @@ export function render<
 				}
 			]
 ): RenderOutput;
+
+export type { set_hydratable_value as setHydratableValue } from '../internal/server/hydratable.js';