diff --git a/ui/app/token-util.js b/ui/app/token-util.js
index 4e3c6c78a..0d4233766 100644
--- a/ui/app/token-util.js
+++ b/ui/app/token-util.js
@@ -44,7 +44,7 @@ async function getSymbolAndDecimals (tokenAddress, existingTokens = []) {
 
 function calcTokenAmount (value, decimals) {
   const multiplier = Math.pow(10, Number(decimals || 0))
-  return new BigNumber(value).div(multiplier).toString()
+  return new BigNumber(value).div(multiplier).toNumber()
 }