diff --git a/src/plots/cartesian/axes.js b/src/plots/cartesian/axes.js
index dd653cdeff9..3c191c5069f 100644
--- a/src/plots/cartesian/axes.js
+++ b/src/plots/cartesian/axes.js
@@ -2650,7 +2650,7 @@ axes.drawOne = function(gd, ax, opts) {
 };
 
 function filterPush(push, automargin) {
-    if(!push) return push;
+    if(!push) return;
 
     var keepMargin = Object.keys(MARGIN_MAPPING).reduce(function(data, nextKey) {
         if(automargin.indexOf(nextKey) !== -1) {
@@ -2665,7 +2665,6 @@ function filterPush(push, automargin) {
             else delete push[key];
         }
     });
-    return push;
 }
 
 function getBoundaryVals(ax, vals) {