1 files changed, 1 insertions, 1 deletions

diff --git a/crypto/src/x509/store/X509StoreException.cs b/crypto/src/x509/store/X509StoreException.cs

index f781291e2..ea7e51e79 100644
--- a/crypto/src/x509/store/X509StoreException.cs
+++ b/crypto/src/x509/store/X509StoreException.cs
@@ -2,7 +2,7 @@ using System;
 
 namespace Org.BouncyCastle.X509.Store
 {
-#if !(NETCF_1_0 || NETCF_2_0 || SILVERLIGHT)
+#if !(NETCF_1_0 || NETCF_2_0 || SILVERLIGHT || PORTABLE)
     [Serializable]
 #endif
     public class X509StoreException