1 files changed, 1 insertions, 1 deletions

diff --git a/crypto/src/openssl/PEMException.cs b/crypto/src/openssl/PEMException.cs

index 4d33a2a1f..6b3e51065 100644
--- a/crypto/src/openssl/PEMException.cs
+++ b/crypto/src/openssl/PEMException.cs
@@ -3,7 +3,7 @@ using System.IO;
 
 namespace Org.BouncyCastle.OpenSsl
 {
-#if !(NETCF_1_0 || NETCF_2_0 || SILVERLIGHT)
+#if !(NETCF_1_0 || NETCF_2_0 || SILVERLIGHT || PORTABLE)
     [Serializable]
 #endif
     public class PemException