diff --git a/server-test/src/test/scala/testpkg/TestServer.scala b/server-test/src/test/scala/testpkg/TestServer.scala
index d601e6d95..de674aa57 100644
--- a/server-test/src/test/scala/testpkg/TestServer.scala
+++ b/server-test/src/test/scala/testpkg/TestServer.scala
@@ -279,7 +279,7 @@ case class TestServer(
           resetConnection() // create a new connection to invalidate the running readFrame future
           false
       }
-      if (!res) impl() else !deadline.isOverdue()
+      if (!res && !deadline.isOverdue) impl() else !deadline.isOverdue()
     }
     impl()
   }