diff --git a/js/models/core/TxProposal.js b/js/models/core/TxProposal.js
index c3e65a812..cb5c4987b 100644
--- a/js/models/core/TxProposal.js
+++ b/js/models/core/TxProposal.js
@@ -128,6 +128,10 @@ TxProposal.fromObj = function(o, forceOpts) {
   forceOpts = forceOpts || {};
 
 
+  if (forceOpts){
+    o.builderObj.opts = o.builderObj.opts || {};
+  }
+
   // force opts is requested.
   for (var k in forceOpts) {
     o.builderObj.opts[k] = forceOpts[k];