diff --git a/core/themes/bartik/css/components/captions.css b/core/themes/bartik/css/components/captions.css
index 4d68e11..0c4abc2 100644
--- a/core/themes/bartik/css/components/captions.css
+++ b/core/themes/bartik/css/components/captions.css
@@ -1,4 +1,7 @@
-/* -------------- Captions -------------- */
+/**
+ * @file
+ * Bartik styling for Captions.
+ */
 .caption {
   margin-bottom: 1.2em;
 }