1 files changed, 4 insertions, 2 deletions
diff --git a/src/mscorlib/shared/System/ApplicationException.cs b/src/mscorlib/shared/System/ApplicationException.cs
index 900feb57f9..cb98902de1 100644
--- a/src/mscorlib/shared/System/ApplicationException.cs
+++ b/src/mscorlib/shared/System/ApplicationException.cs
@@ -23,7 +23,6 @@ namespace System
     // ApplicationException extends but adds no new functionality to 
     // RecoverableException.
     // 
-    [Serializable]
     public class ApplicationException : Exception
     {
         // Creates a new ApplicationException with its message string set to
@@ -51,6 +50,9 @@ namespace System
             HResult = __HResults.COR_E_APPLICATION;
         }
 
-        protected ApplicationException(SerializationInfo info, StreamingContext context) : base(info, context) { }
+        protected ApplicationException(SerializationInfo info, StreamingContext context) : base(info, context)
+        {
+            throw new PlatformNotSupportedException();
+        }
     }
 }