diff --git a/src/universal-dapp-ui.js b/src/universal-dapp-ui.js
index 6d71d05392..f9f50a062b 100644
--- a/src/universal-dapp-ui.js
+++ b/src/universal-dapp-ui.js
@@ -248,7 +248,7 @@ UniversalDAppUI.prototype.getCallButton = function (args) {
   button.innerHTML = title
 
   function clickButton () {
-    self.udapp.call(true, args, inputField.value, (decoded) => {
+    self.udapp.call(true, args, inputField.value, lookupOnly, (decoded) => {
       outputOverride.innerHTML = ''
       outputOverride.appendChild(decoded)
     })
diff --git a/src/universal-dapp.js b/src/universal-dapp.js
index ad9262bf4a..78d2706240 100644
--- a/src/universal-dapp.js
+++ b/src/universal-dapp.js
@@ -139,7 +139,7 @@ UniversalDAppModel.prototype.pendingTransactions = function () {
   return this.txRunner.pendingTxs
 }
 
-UniversalDAppModel.prototype.call = function (isUserAction, args, value, outputCb) {
+UniversalDAppModel.prototype.call = function (isUserAction, args, value, lookupOnly, outputCb) {
   const self = this
   var logMsg
   if (isUserAction) {