diff --git a/src/index.ts b/src/index.ts
index e3ef0e1..ba43daa 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -31,4 +31,7 @@ export { mutableSignal } from './utils/mutable-signal';
 export type { RNG } from './utils/rng';
 export { createRNG, Mulberry32RNG } from './utils/rng';
 
+export type {MiddlewareChain} from './utils/middleware'
+export { createMiddlewareChain } from './utils/middleware';
+
 export * from '@preact/signals-core';
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