1 files changed, 10 insertions, 3 deletions
diff --git a/app/scripts/lib/tx-gas-utils.js b/app/scripts/lib/tx-gas-utils.js
index 56bee19f7..ccf8bb1b1 100644
--- a/app/scripts/lib/tx-gas-utils.js
+++ b/app/scripts/lib/tx-gas-utils.js
@@ -26,7 +26,7 @@ module.exports = class txProvideUtil {
         err.message.includes('Transaction execution error.') ||
         err.message.includes('gas required exceeds allowance or always failing transaction')
       )
-      if ( simulationFailed ) {
+      if (simulationFailed) {
         txMeta.simulationFails = true
         return txMeta
       }
@@ -81,8 +81,15 @@ module.exports = class txProvideUtil {
   }
 
   async validateTxParams (txParams) {
-    if (('value' in txParams) && txParams.value.indexOf('-') === 0) {
-      throw new Error(`Invalid transaction value of ${txParams.value} not a positive number.`)
+    if ('value' in txParams) {
+      const value = txParams.value.toString()
+      if (value.includes('-')) {
+        throw new Error(`Invalid transaction value of ${txParams.value} not a positive number.`)
+      }
+
+      if (value.includes('.')) {
+        throw new Error(`Invalid transaction value of ${txParams.value} number must be in wei`)
+      }
     }
   }
 }