diff --git a/addons/base/static/src/css/base.css b/addons/base/static/src/css/base.css
index cd39b2ad147..1bd004b53f6 100644
--- a/addons/base/static/src/css/base.css
+++ b/addons/base/static/src/css/base.css
@@ -640,7 +640,7 @@ body.openerp {
 .openerp td.required input, .openerp td.required select {
     background-color: #D2D2FF;
 }
-.openerp td.invalid input, .openerp td.invalid select {
+.openerp td.invalid input, .openerp td.invalid select, .openerp td.invalid textarea {
     background-color: #F66;
     border: 1px solid #D00;
 }