diff --git a/ui/app/helpers/utils/util.js b/ui/app/helpers/utils/util.js
index 7643519a8..a6726cdba 100644
--- a/ui/app/helpers/utils/util.js
+++ b/ui/app/helpers/utils/util.js
@@ -62,11 +62,11 @@ export function addressSummary (address, firstSegLength = 10, lastSegLength = 4,
 }
 
 export function isValidAddress (address) {
-  const prefixed = ethUtil.addHexPrefix(address)
-  if (address === '0x0000000000000000000000000000000000000000') {
+  if (!address || address === '0x0000000000000000000000000000000000000000') {
     return false
   }
-  return (isAllOneCase(prefixed) && ethUtil.isValidAddress(prefixed)) || ethUtil.isValidChecksumAddress(prefixed)
+  const prefixed = address.startsWith('0X') ? address : ethUtil.addHexPrefix(address)
+  return (isAllOneCase(prefixed.slice(2)) && ethUtil.isValidAddress(prefixed)) || ethUtil.isValidChecksumAddress(prefixed)
 }
 
 export function isValidDomainName (address) {