2 files changed, 3 insertions, 3 deletions
diff --git a/packages/website/ts/redux/dispatcher.ts b/packages/website/ts/redux/dispatcher.ts
index 0b4cc3938..e0ce43ae5 100644
--- a/packages/website/ts/redux/dispatcher.ts
+++ b/packages/website/ts/redux/dispatcher.ts
@@ -155,7 +155,7 @@ export class Dispatcher {
             type: ActionTypes.UpdateOrderECSignature,
         });
     }
-    public updateUserWeiBalance(balance: BigNumber): void {
+    public updateUserWeiBalance(balance?: BigNumber): void {
         this._dispatch({
             data: balance,
             type: ActionTypes.UpdateUserEtherBalance,
diff --git a/packages/website/ts/redux/reducer.ts b/packages/website/ts/redux/reducer.ts
index 5c57792f7..9d3d8f7d9 100644
--- a/packages/website/ts/redux/reducer.ts
+++ b/packages/website/ts/redux/reducer.ts
@@ -39,7 +39,7 @@ export interface State {
     tokenByAddress: TokenByAddress;
     lastForceTokenStateRefetch: number;
     userAddress: string;
-    userEtherBalanceInWei: BigNumber;
+    userEtherBalanceInWei?: BigNumber;
     portalOnboardingStep: number;
     isPortalOnboardingShowing: boolean;
     hasPortalOnboardingBeenSeen: boolean;
@@ -81,7 +81,7 @@ export const INITIAL_STATE: State = {
     tokenByAddress: {},
     lastForceTokenStateRefetch: moment().unix(),
     userAddress: '',
-    userEtherBalanceInWei: new BigNumber(0),
+    userEtherBalanceInWei: undefined,
     userSuppliedOrderCache: undefined,
     portalOnboardingStep: 0,
     isPortalOnboardingShowing: false,