diff --git a/lib/gcli/ui/arg_fetch.js b/lib/gcli/ui/arg_fetch.js
index <HASH>..<HASH> 100644
--- a/lib/gcli/ui/arg_fetch.js
+++ b/lib/gcli/ui/arg_fetch.js
@@ -134,7 +134,7 @@ ArgFetcher.prototype.linkMessageElement = function(assignment, element) {
   // HACK: See #getInputFor()
   var field = assignment.field;
   if (field == null) {
-    console.error('Missing field for ' + JSON.stringify(assignment));
+    console.error('Missing field for ' + assignment.param.name);
     return 'Missing field';
   }
   field.setMessageElement(element);
Assignments are recursive, dont call JSON.stringify on them