diff --git a/essentials-framework/Essentials Core/PepperDashEssentialsBase/Routing/RoutingPort.cs b/essentials-framework/Essentials Core/PepperDashEssentialsBase/Routing/RoutingPort.cs
index 12edb104..5f8bcef3 100644
--- a/essentials-framework/Essentials Core/PepperDashEssentialsBase/Routing/RoutingPort.cs	
+++ b/essentials-framework/Essentials Core/PepperDashEssentialsBase/Routing/RoutingPort.cs	
@@ -29,6 +29,7 @@ namespace PepperDash.Essentials.Core
 		}
 	}
 
+    [Flags]
 	public enum eRoutingSignalType
 	{
 		Audio = 1,