diff --git a/projects/Unit/APIApproval.cs b/projects/Unit/APIApproval.cs
index 98193a4fd8..e7315e18a7 100644
--- a/projects/Unit/APIApproval.cs
+++ b/projects/Unit/APIApproval.cs
@@ -47,6 +47,7 @@
 namespace RabbitMQ.Client.Unit
 {
     [TestFixture]
+    [Platform(Exclude="Mono")]
     public class APIApproval
     {
         [Test]