diff --git a/src/TraceEvent/Parsers/ClrTraceEventParser.cs b/src/TraceEvent/Parsers/ClrTraceEventParser.cs
index 204c6b6cb..1f78ecd2a 100644
--- a/src/TraceEvent/Parsers/ClrTraceEventParser.cs
+++ b/src/TraceEvent/Parsers/ClrTraceEventParser.cs
@@ -12696,6 +12696,7 @@ public enum RuntimeSku
         None = 0,
         DesktopClr = 0x1,
         CoreClr = 0x2,
+        Mono = 0x4,
     }
     [Flags]
     public enum ExceptionThrownFlags