1 files changed, 4 insertions, 5 deletions
diff --git a/addons/web/static/src/js/views/graph/graph_renderer.js b/addons/web/static/src/js/views/graph/graph_renderer.js
index 0517e14c876..5deba9d69bd 100644
--- a/addons/web/static/src/js/views/graph/graph_renderer.js
+++ b/addons/web/static/src/js/views/graph/graph_renderer.js
@@ -332,8 +332,8 @@ return AbstractRenderer.extend({
         var self = this;
 
         // Remove Undefined of first GroupBy
-        var graphData = _.filter(this.state.data, function(elem){
-            return elem.labels[0] !== undefined;
+        var graphData = _.filter(this.state.data, function (elem) {
+            return elem.labels[0] !== undefined && elem.labels[0] !== _t("Undefined");
         });
 
         // undefined label value becomes a string 'Undefined' translated
@@ -386,10 +386,9 @@ return AbstractRenderer.extend({
             var tick = 0;
             var serie, tickLabel;
             var identity = function (p) {return p;};
-
-            for (var i = 0; i < this.state.data.length; i++) {
+            for (var i = 0; i < graphData.length; i++) {
                 if (graphData[i].labels[0] !== tickLabel) {
-                    tickLabel = this.state.data[i].labels[0];
+                    tickLabel = graphData[i].labels[0];
                     ticksLabels.push(tickLabel);
                     tick++;
                 }