diff --git a/lib/trantor.go b/lib/trantor.go
index 9ae5277..1bbf4a1 100644
--- a/lib/trantor.go
+++ b/lib/trantor.go
@@ -150,8 +150,9 @@ func InitRouter(db database.DB, sg *StatsGatherer, assetsPath string) {
 	r.HandleFunc("/", sg.Gather(indexHandler))
 
 	for _, file := range []string{"robots.txt", "description.json", "opensearch.xml", "key.asc"} {
+		path := path.Join(assetsPath, file)
 		serveFunc := func(w http.ResponseWriter, r *http.Request) {
-			http.ServeFile(w, r, path.Join(assetsPath, file))
+			http.ServeFile(w, r, path)
 		}
 		r.HandleFunc("/"+file, serveFunc)
 	}