diff --git a/autotests/integration/modifier_only_shortcut_test.cpp b/autotests/integration/modifier_only_shortcut_test.cpp
index d610c7456f..00dc2d7d1b 100644
--- a/autotests/integration/modifier_only_shortcut_test.cpp
+++ b/autotests/integration/modifier_only_shortcut_test.cpp
@@ -97,6 +97,7 @@ void ModifierOnlyShortcutTest::initTestCase()
 
     kwinApp()->setConfig(KSharedConfig::openConfig(QString(), KConfig::SimpleConfig));
     qputenv("KWIN_XKB_DEFAULT_KEYMAP", "1");
+    qputenv("XKB_DEFAULT_RULES", "evdev");
 
     kwinApp()->start();
     QVERIFY(workspaceCreatedSpy.wait());