diff --git a/src/agent/index.ts b/src/agent/index.ts
index 96b693b..c3e7ac5 100644
--- a/src/agent/index.ts
+++ b/src/agent/index.ts
@@ -391,7 +391,6 @@ export class SolanaAgentKit {
   }
 
   async approveMultisigProposal(
-    proposalId: PublicKey,
     transactionIndex?: number | bigint,
   ): Promise<string> {
     return approve_proposal(this, transactionIndex);