diff --git a/src/PepperDash.Essentials.Core/Routing/TieLineConfig.cs b/src/PepperDash.Essentials.Core/Routing/TieLineConfig.cs
index 7c09a40d..6317fb01 100644
--- a/src/PepperDash.Essentials.Core/Routing/TieLineConfig.cs
+++ b/src/PepperDash.Essentials.Core/Routing/TieLineConfig.cs
@@ -29,7 +29,7 @@ namespace PepperDash.Essentials.Core.Config
 		public string SourceCard { get; set; }
 		
   /// <summary>
-  /// Gets or sets the SourcePort
+  /// The key of the source output port, used to identify the specific port on the source device for routing.
   /// </summary>
 		public string SourcePort { get; set; }