diff --git a/core/src/main/resources/hudson/security/LDAPSecurityRealm/config.jelly b/core/src/main/resources/hudson/security/LDAPSecurityRealm/config.jelly
index 7818d8b..0f8cc20 100644
--- a/core/src/main/resources/hudson/security/LDAPSecurityRealm/config.jelly
+++ b/core/src/main/resources/hudson/security/LDAPSecurityRealm/config.jelly
@@ -22,6 +22,7 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 -->
 
+<?jelly escape-by-default='true'?>
 <j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:f="/lib/form">
 	<f:entry title="${%Server}" help="/help/security/ldap/server.html">
 	  <f:textbox name="ldap.server" value="${instance.server}"