diff --git a/autotests/integration/kwin_wayland_test.cpp b/autotests/integration/kwin_wayland_test.cpp
index 1ff183aa0d..6bacd59e33 100644
--- a/autotests/integration/kwin_wayland_test.cpp
+++ b/autotests/integration/kwin_wayland_test.cpp
@@ -48,6 +48,7 @@ WaylandTestApplication::WaylandTestApplication(OperationMode mode, int &argc, ch
     : Application(mode, argc, argv)
 {
     QStandardPaths::setTestModeEnabled(true);
+    QIcon::setThemeName(QStringLiteral("breeze"));
 #ifdef KWIN_BUILD_ACTIVITIES
     setUseKActivities(false);
 #endif