diff --git a/js/src/util/abi.js b/js/src/util/abi.js
index 2d849f09d..e7947233b 100644
--- a/js/src/util/abi.js
+++ b/js/src/util/abi.js
@@ -97,7 +97,7 @@ export function parseAbiType (type) {
   if (type === 'address') {
     return {
       type: ADDRESS_TYPE,
-      default: '0x'
+      default: ''
     };
   }