diff --git a/core/themes/seven/css/components/form.css b/core/themes/seven/css/components/form.css
index f3acc2c..a441c68 100644
--- a/core/themes/seven/css/components/form.css
+++ b/core/themes/seven/css/components/form.css
@@ -96,6 +96,10 @@ label[for] {
   box-shadow: inset 0 5px 5px -5px #b8b8b8;
   color: #a51b00;
 }
+.form-item input[type=radio]:checked.error {
+  background-color: #e62600;
+  box-shadow: inset 0px 0px 0px 3px #fff;
+}
 .form-item textarea.error + .cke {
   border-width: 1px;
   border-color: #e62600;