diff --git a/addons/mail/static/src/css/mail_group.css b/addons/mail/static/src/css/mail_group.css
index 4f2b8a16dd0..5ba817aa1a5 100644
--- a/addons/mail/static/src/css/mail_group.css
+++ b/addons/mail/static/src/css/mail_group.css
@@ -91,7 +91,9 @@
 }
 
 .openerp .oe_group_button {
-    padding-top: 7px;
+    position: absolute;
+    padding-bottom: 50px;
+    bottom: 0;
 }
 
 .openerp .oe_group_button .oe_group_join {