diff --git a/kfet/static/kfet/js/statistic.js b/kfet/static/kfet/js/statistic.js
index e6cc6132..f6d21237 100644
--- a/kfet/static/kfet/js/statistic.js
+++ b/kfet/static/kfet/js/statistic.js
@@ -138,7 +138,7 @@
             var prev_chart = content.children();
             
             // creates a blank canvas element and attach it to the DOM
-            var canvas = $("<canvas>");
+            var canvas = $("<canvas height='70'>");
             content.append(canvas);
 
             // create the chart
diff --git a/kfet/templates/kfet/account_read.html b/kfet/templates/kfet/account_read.html
index 8333d0f0..449914f9 100644
--- a/kfet/templates/kfet/account_read.html
+++ b/kfet/templates/kfet/account_read.html
@@ -75,7 +75,7 @@ $(document).ready(function() {
           <div class="col-sm-12 nopadding">
             <div class="panel-md-margin">
               <h3>Ma balance</h3>
-              <div id="stat_balance" class="stat-graph"></div>
+              <div id="stat_balance"></div>
             </div>
           </div>
         </div><!-- /row -->
@@ -83,7 +83,7 @@ $(document).ready(function() {
           <div class="col-sm-12 nopadding">
             <div class="panel-md-margin">
               <h3>Ma consommation</h3>
-              <div id="stat_last" class="stat-graph"></div>
+              <div id="stat_last"></div>
             </div>
           </div>
         </div><!-- /row -->