diff --git a/core/modules/config/tests/config_test/config/language.config.de.config_test.system.yml b/core/modules/config/tests/config_test/config/language/de/config_test.system.yml
similarity index 100%
rename from core/modules/config/tests/config_test/config/language.config.de.config_test.system.yml
rename to core/modules/config/tests/config_test/config/language/de/config_test.system.yml
diff --git a/core/modules/config/tests/config_test/config/language.config.en.config_test.system.yml b/core/modules/config/tests/config_test/config/language/en/config_test.system.yml
similarity index 100%
rename from core/modules/config/tests/config_test/config/language.config.en.config_test.system.yml
rename to core/modules/config/tests/config_test/config/language/en/config_test.system.yml
diff --git a/core/modules/config/tests/config_test/config/language.config.fr.config_test.system.yml b/core/modules/config/tests/config_test/config/language/fr/config_test.system.yml
similarity index 100%
rename from core/modules/config/tests/config_test/config/language.config.fr.config_test.system.yml
rename to core/modules/config/tests/config_test/config/language/fr/config_test.system.yml
diff --git a/core/modules/system/tests/modules/menu_test/config/language.config.nl.menu_test.menu_item.yml b/core/modules/system/tests/modules/menu_test/config/language/nl/menu_test.menu_item.yml
similarity index 100%
rename from core/modules/system/tests/modules/menu_test/config/language.config.nl.menu_test.menu_item.yml
rename to core/modules/system/tests/modules/menu_test/config/language/nl/menu_test.menu_item.yml
diff --git a/core/modules/tour/tests/tour_test/config/language.config.it.tour.tour.tour-test.yml b/core/modules/tour/tests/tour_test/config/language/it/tour.tour.tour-test.yml
similarity index 100%
rename from core/modules/tour/tests/tour_test/config/language.config.it.tour.tour.tour-test.yml
rename to core/modules/tour/tests/tour_test/config/language/it/tour.tour.tour-test.yml