2 files changed, 6 insertions, 6 deletions
diff --git a/src/contract_wrappers/proxy_wrapper.ts b/src/contract_wrappers/proxy_wrapper.ts
index bdf163f35..05d4e142c 100644
--- a/src/contract_wrappers/proxy_wrapper.ts
+++ b/src/contract_wrappers/proxy_wrapper.ts
@@ -9,9 +9,6 @@ import {ProxyContract} from '../types';
  */
 export class ProxyWrapper extends ContractWrapper {
     private _proxyContractIfExists?: ProxyContract;
-    public invalidateContractInstance(): void {
-        delete this._proxyContractIfExists;
-    }
     /**
      * Check if the Exchange contract address is authorized by the Proxy contract.
      * @param   exchangeContractAddress     The hex encoded address of the Exchange contract to call.
@@ -32,6 +29,9 @@ export class ProxyWrapper extends ContractWrapper {
         const authorizedAddresses = await proxyContractInstance.getAuthorizedAddresses.call();
         return authorizedAddresses;
     }
+    private _invalidateContractInstance(): void {
+        delete this._proxyContractIfExists;
+    }
     private async _getProxyContractAsync(): Promise<ProxyContract> {
         if (!_.isUndefined(this._proxyContractIfExists)) {
             return this._proxyContractIfExists;
diff --git a/src/contract_wrappers/token_registry_wrapper.ts b/src/contract_wrappers/token_registry_wrapper.ts
index 3e87e4852..c9f21e46f 100644
--- a/src/contract_wrappers/token_registry_wrapper.ts
+++ b/src/contract_wrappers/token_registry_wrapper.ts
@@ -13,9 +13,6 @@ export class TokenRegistryWrapper extends ContractWrapper {
     constructor(web3Wrapper: Web3Wrapper) {
         super(web3Wrapper);
     }
-    public invalidateContractInstance(): void {
-        delete this._tokenRegistryContractIfExists;
-    }
     /**
      * Retrieves all the tokens currently listed in the Token Registry smart contract
      * @return  An array of objects that conform to the Token interface.
@@ -40,6 +37,9 @@ export class TokenRegistryWrapper extends ContractWrapper {
         });
         return tokens;
     }
+    private _invalidateContractInstance(): void {
+        delete this._tokenRegistryContractIfExists;
+    }
     private async _getTokenRegistryContractAsync(): Promise<TokenRegistryContract> {
         if (!_.isUndefined(this._tokenRegistryContractIfExists)) {
             return this._tokenRegistryContractIfExists;