diff --git a/index.ts b/index.ts
index 5fed094..1548fd3 100644
--- a/index.ts
+++ b/index.ts
@@ -1,6 +1,6 @@
-import {hkdf, pbkdf, Usage} from "./src/kdf"
+import {ecdh, hkdf, pbkdf, Usage} from "./src/kdf"
 
-export const kdf = {hkdf, pbkdf, Usage}
+export const kdf = {ecdh, hkdf, pbkdf, Usage}
 export * as signature from "./src/signature"
 export * as JWT from "./src/jwt"
 export {SecretBox} from './src/secret-box'