diff --git a/src/plots/plots.js b/src/plots/plots.js
index 2ac82672cee..bccb37b4130 100644
--- a/src/plots/plots.js
+++ b/src/plots/plots.js
@@ -667,7 +667,7 @@ function emptySubplotLists() {
  */
 function getFormatObj(gd, formatKeys) {
     var locale = gd._context.locale;
-    if(!locale) locale === 'en-US';
+    if(!locale) locale = 'en-US';
 
     var formatDone = false;
     var formatObj = {};
diff --git a/src/traces/histogram/cross_trace_defaults.js b/src/traces/histogram/cross_trace_defaults.js
index 906bac67a8c..5a9edd34cdf 100644
--- a/src/traces/histogram/cross_trace_defaults.js
+++ b/src/traces/histogram/cross_trace_defaults.js
@@ -174,10 +174,9 @@ module.exports = function crossTraceDefaults(fullData, fullLayout) {
         }
 
         var binGroupFound = false;
-        for(i = 0; i < traces.length; i++) {
-            traceOut = traces[i];
+        if(traces.length) {
+            traceOut = traces[0];
             binGroupFound = coerce('bingroup');
-            break;
         }
 
         groupName = binGroupFound || groupName;