diff --git a/NSspi/SSPIException.cs b/NSspi/SSPIException.cs
index f9d3dab..c8e2938 100644
--- a/NSspi/SSPIException.cs
+++ b/NSspi/SSPIException.cs
@@ -71,7 +71,7 @@ public override string Message
             get
             {
                 return string.Format( 
-                    "{0}. Error Code = '{1:X}' - \"{2}\".", 
+                    "{0}. Error Code = '0x{1:X}' - \"{2}\".", 
                     this.message, 
                     this.errorCode, 
                     EnumMgr.ToText(this.errorCode)