diff --git a/src/wayland/autotests/client/test_wayland_connection_thread.cpp b/src/wayland/autotests/client/test_wayland_connection_thread.cpp
index 5f4bad3636..ff9d8b02dd 100644
--- a/src/wayland/autotests/client/test_wayland_connection_thread.cpp
+++ b/src/wayland/autotests/client/test_wayland_connection_thread.cpp
@@ -209,7 +209,10 @@ void TestWaylandConnectionThread::testConnectFd()
     using namespace KWayland::Server;
     int sv[2];
     QVERIFY(socketpair(AF_UNIX, SOCK_STREAM, 0, sv) >= 0);
-    QVERIFY(m_display->createClient(sv[0]));
+    auto c = m_display->createClient(sv[0])
+    QVERIFY(c);
+    QSignalSpy disconnectedSpy(c, &ClientConnection::disconnected);
+    QVERIFY(disconnectedSpy.isValid());
 
     ConnectionThread *connection = new ConnectionThread;
     QSignalSpy connectedSpy(connection, SIGNAL(connected()));
@@ -237,6 +240,9 @@ void TestWaylandConnectionThread::testConnectFd()
     connectionThread->quit();
     connectionThread->wait();
     delete connectionThread;
+
+    c->destroy();
+    QCOMPARE(disconnectedSpy.count(), 1);
 }
 
 void TestWaylandConnectionThread::testConnectFdNoSocketName()