diff --git a/packages/stargate/src/signingstargateclient.ts b/packages/stargate/src/signingstargateclient.ts
index 0047d7c5..0d17cf33 100644
--- a/packages/stargate/src/signingstargateclient.ts
+++ b/packages/stargate/src/signingstargateclient.ts
@@ -91,7 +91,7 @@ export interface SigningStargateClientOptions {
   readonly gasPrice?: GasPrice;
 }
 
-export function createDefaultTypes(prefix: string): AminoConverters {
+function createDefaultTypes(prefix: string): AminoConverters {
   return {
     ...createAuthzAminoConverters(),
     ...createBankAminoConverters(),