diff --git a/TestSuite/lambdas16.pas b/TestSuite/lambdas16.pas
index 23b0827d4..5a5fef0c7 100644
--- a/TestSuite/lambdas16.pas
+++ b/TestSuite/lambdas16.pas
@@ -1,4 +1,5 @@
-begin
+//winonly
+begin
   var t := System.Threading.Tasks.Task&<byte>.Run(()->byte(2));
   t.Wait();
   assert(t.Result = 2);