diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index df6d78e8aa5..6da9f1bbe8d 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -2033,6 +2033,7 @@ ul.oe-arrow-list li.oe-arrow-list-selected .oe-arrow-list-after {
 
 .openerp .oe_vm_switch_form,
 .openerp .oe_vm_switch_page,
+.openerp .oe_vm_switch_tree,
 .openerp .oe_vm_switch_list,
 .openerp .oe_vm_switch_graph,
 .openerp .oe_vm_switch_gantt,
@@ -2049,6 +2050,7 @@ ul.oe-arrow-list li.oe-arrow-list-selected .oe-arrow-list-after {
 
 .openerp .oe_vm_switch_form span,
 .openerp .oe_vm_switch_page span,
+.openerp .oe_vm_switch_tree span,
 .openerp .oe_vm_switch_list span,
 .openerp .oe_vm_switch_graph span,
 .openerp .oe_vm_switch_gantt span,
@@ -2068,6 +2070,16 @@ ul.oe-arrow-list li.oe-arrow-list-selected .oe-arrow-list-after {
     background-position: 0px -21px;
 }
 
+.openerp .oe_vm_switch_tree {
+    background-position: 0px 0px;
+}
+.openerp .oe_vm_switch_tree:active,
+.openerp .oe_vm_switch_tree:hover,
+.openerp .oe_vm_switch_tree:focus,
+.openerp .oe_vm_switch_tree[disabled="disabled"] {
+    background-position: 0px -21px;
+}
+
 .openerp .oe_vm_switch_form {
     background-position: -22px 0px;
 }
@@ -2078,6 +2090,15 @@ ul.oe-arrow-list li.oe-arrow-list-selected .oe-arrow-list-after {
     background-position: -22px -21px;
 }
 
+.openerp .oe_vm_switch_page {
+    background-position: -22px 0px;
+}
+.openerp .oe_vm_switch_page:active,
+.openerp .oe_vm_switch_page:hover,
+.openerp .oe_vm_switch_page:focus,
+.openerp .oe_vm_switch_page[disabled="disabled"] {
+    background-position: -22px -21px;
+}
 .openerp .oe_vm_switch_graph {
     background-position: -44px 0px;
 }