diff --git a/browser/js/scatterPlot.js b/browser/js/scatterPlot.js
index 8901c366f114c9889eadbb3973a10d671144ea2c..3b5f54254fc200251849ce9af8308940ca0188cd 100644
--- a/browser/js/scatterPlot.js
+++ b/browser/js/scatterPlot.js
@@ -192,7 +192,7 @@ ScatterPlot.prototype = {
         var self = this;
 
         this.label_container = d3.select("#" + this.id)
-            .classed("scatterplot", true)
+            .attr("class", "scatterplot")
             .append("div")
             .attr("id", this.id + "_label_container")