diff --git a/src/layout/histogram.js b/src/layout/histogram.js
index 3ef2483a..9438bb00 100644
--- a/src/layout/histogram.js
+++ b/src/layout/histogram.js
@@ -28,8 +28,10 @@ d3.layout.histogram = function() {
       x = values[i];
       if ((x >= range[0]) && (x <= range[1])) {
         bin = bins[d3.bisect(thresholds, x, 1, m) - 1];
-        bin.y += k;
-        bin.push(data[i]);
+        if (bin) {
+          bin.y += k;
+          bin.push(data[i]);
+        }
       }
     }