diff --git a/kubernetes-client-api/src/test/java/io/fabric8/kubernetes/client/http/AbstractSimultaneousConnectionsTest.java b/kubernetes-client-api/src/test/java/io/fabric8/kubernetes/client/http/AbstractSimultaneousConnectionsTest.java
index 69d346eda4..998233f952 100644
--- a/kubernetes-client-api/src/test/java/io/fabric8/kubernetes/client/http/AbstractSimultaneousConnectionsTest.java
+++ b/kubernetes-client-api/src/test/java/io/fabric8/kubernetes/client/http/AbstractSimultaneousConnectionsTest.java
@@ -96,7 +96,10 @@ private void withHttp1() {
   @DisabledOnOs(OS.WINDOWS)
   public void http1Connections() throws Exception {
     final DelayedResponseHandler handler = new DelayedResponseHandler(MAX_HTTP_1_CONNECTIONS,
-        exchange -> exchange.sendResponseHeaders(204, -1));
+        exchange -> {
+          exchange.sendResponseHeaders(204, -1);
+          exchange.close();
+        });
     httpServer.createContext("/http", handler);
     try (final HttpClient client = clientBuilder.build()) {
       final Collection<CompletableFuture<HttpResponse<AsyncBody>>> asyncResponses = ConcurrentHashMap.newKeySet();