diff --git a/web_src/js/utils/mappings.ts b/web_src/js/utils/mappings.ts
index b035c8b030..fb7836f2f2 100644
--- a/web_src/js/utils/mappings.ts
+++ b/web_src/js/utils/mappings.ts
@@ -1,3 +1,4 @@
+// repo icon, keep in sync with templates/repo/icon.tmpl
 export function getRepoIcon(repo: Record<string, any>) {
   if (repo.mirror) {
     return 'octicon-mirror';