diff --git a/dns/ddclient/Makefile b/dns/ddclient/Makefile
index e3c6c75d2..cc295655f 100644
--- a/dns/ddclient/Makefile
+++ b/dns/ddclient/Makefile
@@ -1,6 +1,6 @@
 PLUGIN_NAME=		ddclient
 PLUGIN_VERSION=		1.8
-PLUGIN_REVISION=	1
+PLUGIN_REVISION=	2
 PLUGIN_DEPENDS=		ddclient
 PLUGIN_COMMENT=		Dynamic DNS client
 PLUGIN_MAINTAINER=	ad@opnsense.org
diff --git a/dns/ddclient/pkg-descr b/dns/ddclient/pkg-descr
index 81cf7d70a..f7f9129fc 100644
--- a/dns/ddclient/pkg-descr
+++ b/dns/ddclient/pkg-descr
@@ -12,6 +12,7 @@ Plugin Changelog
 * Fix expected permission on ddclient.conf
 * Make service status and stop more reliable
 * Time out checkip script after 10 seconds
+* allow % characters in usernames (rev 2)
 
 1.7
 
diff --git a/dns/ddclient/src/opnsense/mvc/app/models/OPNsense/DynDNS/DynDNS.xml b/dns/ddclient/src/opnsense/mvc/app/models/OPNsense/DynDNS/DynDNS.xml
index 8d6a9ade7..8b8439da3 100644
--- a/dns/ddclient/src/opnsense/mvc/app/models/OPNsense/DynDNS/DynDNS.xml
+++ b/dns/ddclient/src/opnsense/mvc/app/models/OPNsense/DynDNS/DynDNS.xml
@@ -78,7 +78,7 @@
                 </server>
                 <username type="TextField">
                     <Required>N</Required>
-                    <mask>/^([a-zA-Z0-9\-.@_:+])*$/u</mask>
+                    <mask>/^([a-zA-Z0-9\-.@_:+\%])*$/u</mask>
                     <ValidationMessage>The username contains invalid characters.</ValidationMessage>
                 </username>
                 <password type="UpdateOnlyTextField">