2 files changed, 5 insertions, 0 deletions
diff --git a/src/contract_wrappers/token_wrapper.ts b/src/contract_wrappers/token_wrapper.ts
index f1f967286..6b2a824de 100644
--- a/src/contract_wrappers/token_wrapper.ts
+++ b/src/contract_wrappers/token_wrapper.ts
@@ -17,6 +17,7 @@ import {
     CreateContractEvent,
     ContractEventEmitter,
     ContractEventObj,
+    CallOpts,
 } from '../types';
 
 const ALLOWANCE_TO_ZERO_GAS_AMOUNT = 47155;
diff --git a/src/types.ts b/src/types.ts
index c1ba0a5cc..a15b9f4e1 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -419,3 +419,7 @@ export interface Artifact {
         address: string;
     }};
 }
+
+export interface CallOpts {
+    defaultBlock?: Web3.BlockParam;
+}