diff --git a/src/wayland/autotests/client/test_wayland_windowmanagement.cpp b/src/wayland/autotests/client/test_wayland_windowmanagement.cpp
index ccaada0eaa..6488932277 100644
--- a/src/wayland/autotests/client/test_wayland_windowmanagement.cpp
+++ b/src/wayland/autotests/client/test_wayland_windowmanagement.cpp
@@ -206,12 +206,14 @@ void TestWindowManagement::cleanup()
         m_registry = nullptr;
     }
     if (m_thread) {
+        if (m_connection) {
+            m_connection->deleteLater();
+        }
         m_thread->quit();
         m_thread->wait();
         delete m_thread;
         m_thread = nullptr;
     }
-    delete m_connection;
     m_connection = nullptr;
 
     delete m_display;