diff --git a/ui/app/components/customize-gas-modal/index.js b/ui/app/components/customize-gas-modal/index.js
index f01f42fe0..485dacf90 100644
--- a/ui/app/components/customize-gas-modal/index.js
+++ b/ui/app/components/customize-gas-modal/index.js
@@ -117,7 +117,7 @@ CustomizeGasModal.prototype.validate = function ({ gasTotal, gasLimit }) {
   let error = null
 
   const balanceIsSufficient = isBalanceSufficient({
-    amount,
+    amount: selectedToken ? '0' : amount,
     gasTotal,
     balance,
     selectedToken,