diff --git a/addons/web/static/src/css/base.sass b/addons/web/static/src/css/base.sass
index 8e6a722c195..3f6d9265e93 100644
--- a/addons/web/static/src/css/base.sass
+++ b/addons/web/static/src/css/base.sass
@@ -1064,6 +1064,10 @@ $colour4: #8a89ba
 
     // }}}
     // FormView.body {{{
+    .oe_form_invalid
+        input, select, textarea
+            background-color: #F66 !important
+            border: 1px solid #D00 !important
     .oe_form_group_cell
         line-height: 18px
         .oe_form_button