diff --git a/core/modules/layout_discovery/tests/themes/test_layout_theme/test_layout_theme.info.yml b/core/modules/layout_discovery/tests/themes/test_layout_theme/test_layout_theme.info.yml
index 7f04437d3007..d70d61b25eb1 100644
--- a/core/modules/layout_discovery/tests/themes/test_layout_theme/test_layout_theme.info.yml
+++ b/core/modules/layout_discovery/tests/themes/test_layout_theme/test_layout_theme.info.yml
@@ -2,4 +2,4 @@ name: 'Test layout theme'
 type: theme
 description: 'Theme for testing a theme-provided layout'
 version: VERSION
-base theme: classy
+base theme: stark