diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index e8916db5a3b..168ba74bb46 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -1571,7 +1571,7 @@ label.error {
 .openerp .oe_form_frame_cell.oe_form_separator_vertical {
     border-left: 1px solid #666;
 }
-.openerp td.required input, .openerp td.required select {
+.openerp td.required input, .openerp td.required select, .openerp td.required textarea {
     background-color: #D2D2FF !important;
 }
 .openerp td.invalid input, .openerp td.invalid select, .openerp td.invalid textarea {