diff --git a/addons/web_kanban/static/src/css/kanban.css b/addons/web_kanban/static/src/css/kanban.css
index a8ed25694ba..cb88255c18c 100644
--- a/addons/web_kanban/static/src/css/kanban.css
+++ b/addons/web_kanban/static/src/css/kanban.css
@@ -16,6 +16,9 @@
   top: 8px;
   font-weight: bold;
 }
+.openerp .oe_kanban_view .oe_kanban_header:hover .oe_kanban_group_length {
+  display: none;
+}
 .openerp .oe_kanban_view .ui-sortable-placeholder {
   border: 1px solid rgba(0, 0, 0, 0.1);
   visibility: visible !important;
diff --git a/addons/web_kanban/static/src/css/kanban.sass b/addons/web_kanban/static/src/css/kanban.sass
index 2182fb693ea..7c15db32b0e 100644
--- a/addons/web_kanban/static/src/css/kanban.sass
+++ b/addons/web_kanban/static/src/css/kanban.sass
@@ -61,6 +61,8 @@
             position: relative
             top: +8px
             font-weight: bold
+    .oe_kanban_header:hover .oe_kanban_group_length
+        display: none
     .ui-sortable-placeholder
         border: 1px solid rgba(0,0,0,0.1)
         visibility: visible !important