diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index 6cfee50d6a4..2a44db4faad 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -522,6 +522,7 @@
 }
 .openerp .oe_grey {
   color: #aaaaaa;
+  height: 30px;
 }
 .openerp .oe_tag {
   border: 1px solid #afafb6;
diff --git a/addons/web/static/src/css/base.sass b/addons/web/static/src/css/base.sass
index b4665808caf..713f8548980 100644
--- a/addons/web/static/src/css/base.sass
+++ b/addons/web/static/src/css/base.sass
@@ -461,6 +461,7 @@ $sheet-padding: 16px
         max-width: 650px
     .oe_grey
         color: #aaa
+        height: 30px
 
     // }}}