diff --git a/packages/edit-site/src/components/global-styles/style.scss b/packages/edit-site/src/components/global-styles/style.scss
index 21ddb8a8c02d93..fabc0fa9b40233 100644
--- a/packages/edit-site/src/components/global-styles/style.scss
+++ b/packages/edit-site/src/components/global-styles/style.scss
@@ -97,7 +97,7 @@
 	}
 
 	&:focus .edit-site-global-styles-variations_item-preview {
-		border: var(--wp-admin-theme-color) $border-width solid;
+		border: var(--wp-admin-theme-color) var(--wp-admin-border-width-focus) solid;
 	}
 }