diff --git a/packages/amino/src/secp256k1hdwallet.spec.ts b/packages/amino/src/secp256k1hdwallet.spec.ts
index d852df1f..63a5808e 100644
--- a/packages/amino/src/secp256k1hdwallet.spec.ts
+++ b/packages/amino/src/secp256k1hdwallet.spec.ts
@@ -4,10 +4,9 @@ import { fromBase64, fromHex } from "@cosmjs/encoding";
 
 import { extractKdfConfiguration, Secp256k1HdWallet } from "./secp256k1hdwallet";
 import { serializeSignDoc, StdSignDoc } from "./signdoc";
+import { base64Matcher } from "./testutils.spec";
 import { executeKdf, KdfConfiguration } from "./wallet";
 
-const base64Matcher = /^(?:[a-zA-Z0-9+/]{4})*(?:|(?:[a-zA-Z0-9+/]{3}=)|(?:[a-zA-Z0-9+/]{2}==)|(?:[a-zA-Z0-9+/]{1}===))$/;
-
 describe("Secp256k1HdWallet", () => {
   // m/44'/118'/0'/0/0
   // pubkey: 02baa4ef93f2ce84592a49b1d729c074eab640112522a7a89f7d03ebab21ded7b6
diff --git a/packages/amino/src/testutils.spec.ts b/packages/amino/src/testutils.spec.ts
index 36cbc26d..18c5f57b 100644
--- a/packages/amino/src/testutils.spec.ts
+++ b/packages/amino/src/testutils.spec.ts
@@ -1,6 +1,8 @@
 import { decodeBech32Pubkey } from "./encoding";
 import { MultisigThresholdPubkey } from "./pubkeys";
 
+export const base64Matcher = /^(?:[a-zA-Z0-9+/]{4})*(?:|(?:[a-zA-Z0-9+/]{3}=)|(?:[a-zA-Z0-9+/]{2}==)|(?:[a-zA-Z0-9+/]{1}===))$/;
+
 // ./build/wasmd keys add test1
 // ./build/wasmd keys add test2
 // ./build/wasmd keys add test3