diff --git a/autotests/integration/lockscreen.cpp b/autotests/integration/lockscreen.cpp
index 7210b333af..d9ca92f767 100644
--- a/autotests/integration/lockscreen.cpp
+++ b/autotests/integration/lockscreen.cpp
@@ -176,6 +176,8 @@ Window *LockScreenTest::showWindow()
 void LockScreenTest::initTestCase()
 {
     qRegisterMetaType<KWin::Window *>();
+    qRegisterMetaType<KWin::ElectricBorder>("ElectricBorder");
+
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     QVERIFY(applicationStartedSpy.isValid());
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));