diff --git a/addons/web_graph/static/lib/dhtmlxGraph/codebase/dhtmlxchart.css b/addons/web_graph/static/lib/dhtmlxGraph/codebase/dhtmlxchart.css
index b7c3880d162..4bbc0d3e2ba 100644
--- a/addons/web_graph/static/lib/dhtmlxGraph/codebase/dhtmlxchart.css
+++ b/addons/web_graph/static/lib/dhtmlxGraph/codebase/dhtmlxchart.css
@@ -9,7 +9,7 @@ To use it on other terms or get Professional edition of the component please con
 .dhx_map_img{width:100%;height:100%;position:absolute;top:0;left:0;border:0;filter:alpha(opacity=0);}
 .dhx_axis_item_y{position:absolute;height:10px;line-height:10px;text-align:right;}
 .dhx_axis_title_y{text-align:center;font-family:Verdana;-webkit-transform:rotate(-90deg);-moz-transform:rotate(-90deg);filter:progid:DXImageTransform.Microsoft.BasicImage(rotation=3);-o-transform:rotate(-90deg);padding-left:3px;}
-.dhx_axis_item_x{text-align:left;margin-top:20px;margin-left:-14px;font-size:8pt;-webkit-transform:rotate(-60deg);-moz-transform:rotate(-60deg);filter:progid:DXImageTransform.Microsoft.BasicImage(rotation=2);-o-transform:rotate(-60deg);padding-left:3px;}
+.dhx_axis_item_x{text-align:left;margin-top:20px;margin-left:-14px;font-size:8pt;-webkit-transform:rotate(-60deg);-moz-transform:rotate(-60deg);filter:progid:DXImageTransform.Microsoft.BasicImage(rotation=0);-o-transform:rotate(-60deg);padding-left:3px;}
 .dhx_axis_title_x{text-align:center;margin-top:50px;}
 .dhx_chart_legend{position:absolute;}
 .dhx_chart_legend_item{height:18px;line-height:18px;padding:2px;}
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