diff --git a/CHANGELOG.md b/CHANGELOG.md
index 998219254..24ae4e781 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 - Fix bug where edited gas parameters would not take effect.
 - Trim currency list.
 - Fix event filter bug introduced by newer versions of Geth.
+- Fix bug where decimals in gas inputs could result in strange values.
 
 ## 3.6.4 2017-5-8
 
diff --git a/ui/app/components/hex-as-decimal-input.js b/ui/app/components/hex-as-decimal-input.js
index e37aaa8c3..d24fdcb7b 100644
--- a/ui/app/components/hex-as-decimal-input.js
+++ b/ui/app/components/hex-as-decimal-input.js
@@ -139,7 +139,7 @@ HexAsDecimalInput.prototype.constructWarning = function () {
 }
 
 function hexify (decimalString) {
-  const hexBN = new BN(decimalString, 10)
+  const hexBN = new BN(decimalString.split('.')[0], 10)
   return '0x' + hexBN.toString('hex')
 }