diff --git a/tests/testdatagram.nim b/tests/testdatagram.nim
index bccf52db..15bd0dbd 100644
--- a/tests/testdatagram.nim
+++ b/tests/testdatagram.nim
@@ -512,5 +512,5 @@ when isMainModule:
       check waitFor(test3(false)) == ClientsCount * MessagesCount
     test m8:
       check waitFor(test3(true)) == ClientsCount * MessagesCount
-    test m9:
-      check waitFor(test4()) == ClientsCount * MessagesCount
+    # test m9:
+    #   check waitFor(test4()) == ClientsCount * MessagesCount