diff --git a/packages/website/ts/components/inputs/address_input.tsx b/packages/website/ts/components/inputs/address_input.tsx
index 832324fdab..40ae722d9c 100644
--- a/packages/website/ts/components/inputs/address_input.tsx
+++ b/packages/website/ts/components/inputs/address_input.tsx
@@ -62,7 +62,7 @@ export class AddressInput extends React.Component<AddressInputProps, AddressInpu
     }
     private onOrderTakerAddressUpdated(e: any) {
         const address = e.target.value.toLowerCase();
-        const isValidAddress = isAddress(address) || address === '';
+        const isValidAddress = addressUtils.isAddress(address) || address === '';
         const errMsg = isValidAddress ? '' : 'Invalid ethereum address';
         this.setState({
             address,