diff --git a/packages/proto-signing/src/registry.ts b/packages/proto-signing/src/registry.ts
index 90dbf127..760db180 100644
--- a/packages/proto-signing/src/registry.ts
+++ b/packages/proto-signing/src/registry.ts
@@ -95,12 +95,13 @@ export class Registry {
    * change the `customTypes` argument to override the default types if set.
    * See https://github.com/cosmos/cosmjs/issues/994
    */
-  public constructor(customTypes: Iterable<[string, GeneratedType]> = []) {
+  public constructor(customTypes?: Iterable<[string, GeneratedType]>) {
     const { cosmosCoin, cosmosMsgSend } = defaultTypeUrls;
-    this.types = new Map<string, GeneratedType>([
+      this.types = customTypes ? new Map<string, GeneratedType>([
+        ...customTypes
+      ]) : new Map<string, GeneratedType>([
       [cosmosCoin, Coin],
       [cosmosMsgSend, MsgSend],
-      ...customTypes,
     ]);
   }
 
diff --git a/packages/stargate/src/signingstargateclient.ts b/packages/stargate/src/signingstargateclient.ts
index 0d34e1c7..5b00c2cf 100644
--- a/packages/stargate/src/signingstargateclient.ts
+++ b/packages/stargate/src/signingstargateclient.ts
@@ -72,6 +72,7 @@ import { calculateFee, GasPrice } from "./fee";
 import { DeliverTxResponse, StargateClient } from "./stargateclient";
 
 export const defaultRegistryTypes: ReadonlyArray<[string, GeneratedType]> = [
+  ["/cosmos.base.v1beta1.Coin", Coin],
   ["/cosmos.bank.v1beta1.MsgMultiSend", MsgMultiSend],
   ["/cosmos.distribution.v1beta1.MsgFundCommunityPool", MsgFundCommunityPool],
   ["/cosmos.distribution.v1beta1.MsgSetWithdrawAddress", MsgSetWithdrawAddress],