diff --git a/themes/garland/style.css b/themes/garland/style.css
index cbde9d150c4..8f19fe4c4eb 100644
--- a/themes/garland/style.css
+++ b/themes/garland/style.css
@@ -291,6 +291,11 @@ table .form-button, table .form-submit {
   margin-bottom: 0;
 }
 
+/* Avoid displaying content of script tags */
+#header-region script {
+  display: none;
+}
+
 #header-region p, #header-region img {
   margin-top: 0.5em;
 }