diff --git a/mRemoteV1/Config/Serializers/XmlConnectionNodeSerializer.cs b/mRemoteV1/Config/Serializers/XmlConnectionNodeSerializer.cs
index 4cf1030a4..471053539 100644
--- a/mRemoteV1/Config/Serializers/XmlConnectionNodeSerializer.cs
+++ b/mRemoteV1/Config/Serializers/XmlConnectionNodeSerializer.cs
@@ -44,6 +44,7 @@ namespace mRemoteNG.Config.Serializers
             element.Add(new XAttribute("Descr", connectionInfo.Description));
             element.Add(new XAttribute("Icon", connectionInfo.Icon));
             element.Add(new XAttribute("Panel", connectionInfo.Panel));
+            element.Add(new XAttribute("Id", connectionInfo.ConstantID));
 
             element.Add(_saveFilter.SaveUsername
                 ? new XAttribute("Username", connectionInfo.Username)
diff --git a/mRemoteV1/Config/Serializers/XmlConnectionsDeserializer.cs b/mRemoteV1/Config/Serializers/XmlConnectionsDeserializer.cs
index 2ad45255c..cc76c36ae 100644
--- a/mRemoteV1/Config/Serializers/XmlConnectionsDeserializer.cs
+++ b/mRemoteV1/Config/Serializers/XmlConnectionsDeserializer.cs
@@ -485,6 +485,7 @@ namespace mRemoteNG.Config.Serializers
 
                 if (_confVersion >= 2.6)
                 {
+                    connectionInfo.ConstantID = xmlnode.Attributes["Id"]?.Value ?? connectionInfo.ConstantID;
                     connectionInfo.SoundQuality = (ProtocolRDP.RDPSoundQuality)Tools.MiscTools.StringToEnum(typeof(ProtocolRDP.RDPSoundQuality), Convert.ToString(xmlnode.Attributes["SoundQuality"].Value));
                     connectionInfo.Inheritance.SoundQuality = bool.Parse(xmlnode.Attributes["InheritSoundQuality"].Value);
                     connectionInfo.RDPMinutesToIdleTimeout = Convert.ToInt32(xmlnode.Attributes["RDPMinutesToIdleTimeout"]?.Value ?? "0");
diff --git a/mRemoteV1/Schemas/mremoteng_confcons_v2_6.xsd b/mRemoteV1/Schemas/mremoteng_confcons_v2_6.xsd
index 876a72856..5b815a806 100644
--- a/mRemoteV1/Schemas/mremoteng_confcons_v2_6.xsd
+++ b/mRemoteV1/Schemas/mremoteng_confcons_v2_6.xsd
@@ -34,6 +34,7 @@
     <xs:attribute name="Descr" type="xs:string" use="required" />
     <xs:attribute name="Icon" type="xs:string" use="required" />
     <xs:attribute name="Panel" type="xs:string" use="required" />
+    <xs:attribute name="Id" type="xs:string" use="required" />
     <xs:attribute name="Username" type="xs:string" use="required" />
     <xs:attribute name="Domain" type="xs:string" use="required" />
     <xs:attribute name="Password" type="xs:string" use="required" />