diff --git a/interface-definitions/wireguard.xml b/interface-definitions/wireguard.xml
index 3bf7bcd33..b0923bbe0 100644
--- a/interface-definitions/wireguard.xml
+++ b/interface-definitions/wireguard.xml
@@ -1,123 +1,123 @@
 <?xml version="1.0"?>
 <interfaceDefinition>
   <node name="interfaces">
     <children>
       <tagNode name="wireguard" owner="${vyos_conf_scripts_dir}/wireguard.py">
         <properties>
           <help>WireGuard interface name</help>
           <priority>459</priority> <!-- subsequent ones may be removed, just make sure ethernet ifs are present -->
           <constraint>
             <regex>^wg[0-9]{1,4}</regex>
           </constraint>
           <constraintErrorMessage>illegal interface name</constraintErrorMessage>
           <valueHelp>
             <format>wgN</format>
             <description>WireGuard interface name</description>
           </valueHelp>
         </properties>
         <children>
           <leafNode name="address">
             <properties>
               <help>IP address</help> 
               <valueHelp>
                 <format>ipv4net</format>
                 <description>IPv4 address and prefix length</description>
               </valueHelp>
               <valueHelp>
                 <format>ipv6net</format>
                 <description>IPv6 address and prefix length</description>
               </valueHelp>
               <multi/>
             </properties>
           </leafNode>
           <leafNode name="description">
             <properties>
               <help>description</help>
               <constraint>
-                <regex>[^ ]{1,100}$</regex>
+                <regex>^.{1,100}$</regex>
               </constraint>
               <constraintErrorMessage>interface description is too long (limit 100 characters)</constraintErrorMessage>
             </properties>
           </leafNode>
           <leafNode name="port">
             <properties>
               <help>Local port number to accept connections</help>
               <constraint>
                 <validator name="numeric" argument="--range 1024-65535"/>
               </constraint>
             </properties>
           </leafNode>
           <leafNode name="mtu">
             <properties>
               <help>interface mtu size(default: 1420)</help>
               <constraint>
                 <validator name="numeric" argument="--range 68-9000"/>
               </constraint>
             </properties>
           </leafNode>
           <leafNode name="fwmark">
             <properties>
               <help>A 32-bit fwmark value set on all outgoing packets</help>
               <valueHelp>
                 <format>number</format>
                 <description>value which marks the packet for QoS/shaper</description>
               </valueHelp>
               <constraint>
                 <validator name="numeric" argument="--range 1-255"/>
               </constraint>
             </properties>
           </leafNode>
           <tagNode name="peer">
             <properties>
               <help>peer alias</help>
               <constraint>
                 <regex>[^ ]{1,100}$</regex>
               </constraint>
               <constraintErrorMessage>peer alias too long (limit 100 characters)</constraintErrorMessage>
             </properties>
             <children>
               <leafNode name="pubkey">
                 <properties>
                   <help>base64 encoded public key</help>
                   <constraint>
                     <regex>^[0-9a-zA-Z\+/]{43}=$</regex>
                   </constraint>
                   <constraintErrorMessage>Key is not valid 44-character (32-bytes) base64</constraintErrorMessage>
                 </properties>
               </leafNode>
                 <leafNode name="preshared-key">
                 <properties>
                   <help>base64 encoded preshared key</help>
                   <constraint>
                     <regex>^[0-9a-zA-Z\+/]{43}=$</regex>
                   </constraint>
                   <constraintErrorMessage>Key is not valid 44-character (32-bytes) base64</constraintErrorMessage>
                 </properties>
               </leafNode>
               <leafNode name="allowed-ips">
                 <properties>
                   <help>IP addresses allowed to traverse the peer</help>
                 <multi/>
                 </properties>
               </leafNode>
               <!--  eventually check format IP:port -->
               <leafNode name="endpoint">
                 <properties>
                   <help>Remote endpoint (IP:port)</help>
                 </properties>
               </leafNode>
               <leafNode name="persistent-keepalive">
                 <properties>
                   <help>how often send keep alives in seconds</help>
                   <constraint>
                     <validator name="numeric" argument="--range 1-65535"/> 
                   </constraint>
                 </properties>
               </leafNode>
             </children>
           </tagNode>
         </children>
       </tagNode>
     </children>
   </node>
 </interfaceDefinition>