diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index 97bec47d0a7..d7aeb6125d4 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -3095,6 +3095,9 @@
   .openerp .oe_searchview .oe_searchview_search {
     top: 0px;
   }
+  .openerp .oe_form_field_many2one .oe_m2o_cm_button {
+    line-height: 18px;
+  }
 }
 
 .kitten-mode-activated {
diff --git a/addons/web/static/src/css/base.sass b/addons/web/static/src/css/base.sass
index 7e467281e44..edc3b505ffe 100644
--- a/addons/web/static/src/css/base.sass
+++ b/addons/web/static/src/css/base.sass
@@ -2440,6 +2440,8 @@ $sheet-padding: 16px
             line-height: 21px
         .oe_searchview .oe_searchview_search
             top: 0px
+        .oe_form_field_many2one .oe_m2o_cm_button
+            line-height: 18px
 
 // Kitten Mode {{{
 .kitten-mode-activated