diff --git a/src/Eto/Forms/Clipboard.cs b/src/Eto/Forms/Clipboard.cs
index a2ebc90a8e..a1890b4444 100644
--- a/src/Eto/Forms/Clipboard.cs
+++ b/src/Eto/Forms/Clipboard.cs
@@ -205,9 +205,11 @@ public void SetObject(object value, string type)
 		{
 			using (var ms = new MemoryStream())
 			{
+#pragma warning disable SYSLIB0011
 				var binaryFormatter = new BinaryFormatter();
 				binaryFormatter.Serialize(ms, value);
 				SetDataStream(ms, type);
+#pragma warning restore SYSLIB0011
 				return;
 			}
 		}
@@ -273,8 +275,10 @@ public object GetObject(string type)
 			return null;
 		try
 		{
+#pragma warning disable SYSLIB0011
 			var binaryFormatter = new BinaryFormatter();
 			return binaryFormatter.Deserialize(stream);
+#pragma warning restore SYSLIB0011
 		}
 		catch (Exception ex)
 		{
diff --git a/src/Eto/Forms/DataObject.cs b/src/Eto/Forms/DataObject.cs
index dd600b734d..017575ead3 100644
--- a/src/Eto/Forms/DataObject.cs
+++ b/src/Eto/Forms/DataObject.cs
@@ -261,9 +261,11 @@ public void SetObject(object value, string type)
 		{
 			using (var ms = new MemoryStream())
 			{
+#pragma warning disable SYSLIB0011
 				var binaryFormatter = new BinaryFormatter();
 				binaryFormatter.Serialize(ms, value);
 				SetDataStream(ms, type);
+#pragma warning restore SYSLIB0011
 				return;
 			}
 		}
@@ -329,8 +331,10 @@ public object GetObject(string type)
 			return null;
 		try
 		{
+#pragma warning disable SYSLIB0011
 			var binaryFormatter = new BinaryFormatter();
 			return binaryFormatter.Deserialize(stream);
+#pragma warning restore SYSLIB0011
 		}
 		catch (Exception ex)
 		{