diff --git a/src/opnsense/mvc/app/controllers/OPNsense/Unbound/forms/dnsbl.xml b/src/opnsense/mvc/app/controllers/OPNsense/Unbound/forms/dnsbl.xml
index 89d152a70..28cb2f035 100644
--- a/src/opnsense/mvc/app/controllers/OPNsense/Unbound/forms/dnsbl.xml
+++ b/src/opnsense/mvc/app/controllers/OPNsense/Unbound/forms/dnsbl.xml
@@ -41,9 +41,7 @@
         <type>select_multiple</type>
         <style>tokenize</style>
         <allownew>true</allownew>
-        <help>
-            List of domains to blocklist.
-        </help>
+        <help>List of domains to blocklist. Only exact matches are supported.</help>
     </field>
     <field>
         <id>unbound.dnsbl.wildcards</id>