diff --git a/packages/bcp/src/cosmwasmcodec.ts b/packages/bcp/src/cosmwasmcodec.ts
index ff3a9879..b370bdd1 100644
--- a/packages/bcp/src/cosmwasmcodec.ts
+++ b/packages/bcp/src/cosmwasmcodec.ts
@@ -32,8 +32,8 @@ export class CosmWasmCodec implements TxCodec {
   private readonly addressPrefix: CosmosAddressBech32Prefix;
   private readonly tokens: TokenInfos;
 
-  public constructor(prefix: CosmosAddressBech32Prefix, tokens: TokenInfos) {
-    this.addressPrefix = prefix;
+  public constructor(addressPrefix: CosmosAddressBech32Prefix, tokens: TokenInfos) {
+    this.addressPrefix = addressPrefix;
     this.tokens = tokens;
   }
 
diff --git a/packages/bcp/types/cosmwasmcodec.d.ts b/packages/bcp/types/cosmwasmcodec.d.ts
index 76121658..ba1353a8 100644
--- a/packages/bcp/types/cosmwasmcodec.d.ts
+++ b/packages/bcp/types/cosmwasmcodec.d.ts
@@ -15,7 +15,7 @@ import { TokenInfos } from "./types";
 export declare class CosmWasmCodec implements TxCodec {
   private readonly addressPrefix;
   private readonly tokens;
-  constructor(prefix: CosmosAddressBech32Prefix, tokens: TokenInfos);
+  constructor(addressPrefix: CosmosAddressBech32Prefix, tokens: TokenInfos);
   bytesToSign(unsigned: UnsignedTransaction, nonce: Nonce): SigningJob;
   bytesToPost(signed: SignedTransaction): PostableBytes;
   identifier(_signed: SignedTransaction): TransactionId;