diff --git a/src/utils.ts b/src/utils.ts
index 08b8cea..003159c 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -33,7 +33,6 @@ export async function getPayload(
 
   return await createHandshakePayload(
     localPeer.marshalPubKey(),
-    localPeer.marshalPrivKey(),
     signedPayload,
     signedEarlyDataPayload
   );
@@ -41,7 +40,6 @@ export async function getPayload(
 
 export async function createHandshakePayload(
   libp2pPublicKey: bytes,
-  libp2pPrivateKey: bytes,
   signedPayload: bytes,
   signedEarlyData?: EarlyDataPayload,
 ): Promise<bytes> {
diff --git a/test/handshakes/ik.test.ts b/test/handshakes/ik.test.ts
index 6a4bf8e..69a674f 100644
--- a/test/handshakes/ik.test.ts
+++ b/test/handshakes/ik.test.ts
@@ -31,7 +31,7 @@ describe("Index", () => {
       const initSignedPayload = await libp2pInitKeys.sign(getHandshakePayload(kpInitiator.publicKey));
       const libp2pInitPrivKey = libp2pInitKeys.marshal().slice(0, 32);
       const libp2pInitPubKey = libp2pInitKeys.marshal().slice(32, 64);
-      const payloadInitEnc = await createHandshakePayload(libp2pInitPubKey, libp2pInitPrivKey, initSignedPayload);
+      const payloadInitEnc = await createHandshakePayload(libp2pInitPubKey, initSignedPayload);
 
       // initiator sends message
       const message = Buffer.concat([Buffer.alloc(0), payloadInitEnc]);
@@ -48,7 +48,7 @@ describe("Index", () => {
       const libp2pRespPrivKey = libp2pRespKeys.marshal().slice(0, 32);
       const libp2pRespPubKey = libp2pRespKeys.marshal().slice(32, 64);
       const respSignedPayload = await libp2pRespKeys.sign(getHandshakePayload(kpResponder.publicKey));
-      const payloadRespEnc = await createHandshakePayload(libp2pRespPubKey, libp2pRespPrivKey, respSignedPayload);
+      const payloadRespEnc = await createHandshakePayload(libp2pRespPubKey, respSignedPayload);
 
       const message1 = Buffer.concat([message, payloadRespEnc]);
       const messageBuffer2 = ikR.sendMessage(responderSession, message1);
diff --git a/test/handshakes/xx.test.ts b/test/handshakes/xx.test.ts
index b6d93f4..ddd9137 100644
--- a/test/handshakes/xx.test.ts
+++ b/test/handshakes/xx.test.ts
@@ -58,7 +58,7 @@ describe("Index", () => {
     const libp2pInitPrivKey = libp2pInitKeys.marshal().slice(0, 32);
     const libp2pInitPubKey = libp2pInitKeys.marshal().slice(32, 64);
 
-    const payloadInitEnc = await createHandshakePayload(libp2pInitPubKey, libp2pInitPrivKey, initSignedPayload);
+    const payloadInitEnc = await createHandshakePayload(libp2pInitPubKey, initSignedPayload);
 
     // initiator sends message
     const message = Buffer.concat([Buffer.alloc(0), payloadInitEnc]);
@@ -75,7 +75,7 @@ describe("Index", () => {
     // responder creates payload
     const libp2pRespPrivKey = libp2pRespKeys.marshal().slice(0, 32);
     const libp2pRespPubKey = libp2pRespKeys.marshal().slice(32, 64);
-    const payloadRespEnc = await createHandshakePayload(libp2pRespPubKey, libp2pRespPrivKey, respSignedPayload);
+    const payloadRespEnc = await createHandshakePayload(libp2pRespPubKey, respSignedPayload);
 
     const message1 = Buffer.concat([message, payloadRespEnc]);
     const messageBuffer2 = xx.sendMessage(nsResp, message1);