diff --git a/addons/web_kanban/static/src/css/kanban.css b/addons/web_kanban/static/src/css/kanban.css
index 9026251acea..09f3d87d341 100644
--- a/addons/web_kanban/static/src/css/kanban.css
+++ b/addons/web_kanban/static/src/css/kanban.css
@@ -103,6 +103,9 @@
   border-right: 1px solid #b9b9b9;
 }
 .openerp .oe_kanban_view.oe_kanban_grouped .oe_kanban_group_header {
+  width: 170px;
+}
+.openerp .oe_kanban_view.oe_kanban_grouped .oe_kanban_group_header.oe_kanban_group_folded {
   width: 1%;
 }
 .openerp .oe_kanban_view .oe_form .oe_kanban_column {
diff --git a/addons/web_kanban/static/src/css/kanban.sass b/addons/web_kanban/static/src/css/kanban.sass
index d6734124def..4de65592813 100644
--- a/addons/web_kanban/static/src/css/kanban.sass
+++ b/addons/web_kanban/static/src/css/kanban.sass
@@ -128,6 +128,8 @@
         border-right: 1px solid #b9b9b9
     &.oe_kanban_grouped
         .oe_kanban_group_header
+            width: 170px
+        .oe_kanban_group_header.oe_kanban_group_folded
             width: 1%
 
     .oe_form
diff --git a/addons/web_kanban/static/src/js/kanban.js b/addons/web_kanban/static/src/js/kanban.js
index 0ff879d980b..4fffdd0977a 100644
--- a/addons/web_kanban/static/src/js/kanban.js
+++ b/addons/web_kanban/static/src/js/kanban.js
@@ -322,7 +322,6 @@ instance.web_kanban.KanbanView = instance.web.View.extend({
     },
     on_groups_started: function() {
         var self = this;
-        this.compute_groups_width();
         if (this.group_by) {
             // Kanban cards drag'n'drop
             var $columns = this.$el.find('.oe_kanban_column .oe_kanban_column_cards');
@@ -420,27 +419,6 @@ instance.web_kanban.KanbanView = instance.web.View.extend({
             });
         }
     },
-    compute_groups_width: function() {
-        var unfolded = 0;
-        var self = this;
-        _.each(this.groups, function(group) {
-            unfolded += group.state.folded ? 0 : 1;
-            group.$el.children(':first').css('width', '');
-        });
-        _.each(this.groups, function(group) {
-            if (!group.state.folded) {
-                if (182*unfolded>=self.$el.width()) {
-                    group.$el.children(':first').css('width', "170px");
-                } else if (262*unfolded<self.$el.width()) {
-                    group.$el.children(':first').css('width', "250px");
-                } else {
-		    // -12 because of padding 6 between cards
-		    // -1 because of the border of the latest dummy column
-                    group.$el.children(':first').css('width', Math.floor((self.$el.width()-1)/unfolded)-12 + 'px');
-                }
-            }
-        });
-    },
 
     do_show: function() {
         if (this.$buttons) {
@@ -695,7 +673,6 @@ instance.web_kanban.KanbanGroup = instance.web.Widget.extend({
     },
     do_action_toggle_fold: function() {
         this.do_toggle_fold();
-        this.view.compute_groups_width();
     },
     do_action_edit: function() {
         var self = this;