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Diffstat (limited to 'src/mscorlib/src/System/AsyncCallback.cs')
-rw-r--r--src/mscorlib/src/System/AsyncCallback.cs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/AsyncCallback.cs b/src/mscorlib/src/System/AsyncCallback.cs
index 69a03812e1..9bf4931e1f 100644
--- a/src/mscorlib/src/System/AsyncCallback.cs
+++ b/src/mscorlib/src/System/AsyncCallback.cs
@@ -10,7 +10,9 @@
**
===========================================================*/
namespace System {
+#if FEATURE_SERIALIZATION
[Serializable]
+#endif
[System.Runtime.InteropServices.ComVisible(true)]
public delegate void AsyncCallback(IAsyncResult ar);