diff --git a/web/css/layout/app-shell.css b/web/css/layout/app-shell.css
index 771ef08..d904c3a 100644
--- a/web/css/layout/app-shell.css
+++ b/web/css/layout/app-shell.css
@@ -11,7 +11,7 @@
   }
 
   small {
-    --app-font-size: 0.875em;
+    font-size: var(--text-xs);
     line-height: var(--leading-loose);
   }