diff --git a/api/server/server.go b/api/server/server.go
index f7a5fa039..3360be61b 100644
--- a/api/server/server.go
+++ b/api/server/server.go
@@ -97,7 +97,8 @@ func (s *Server) Run(ctx context.Context) {
 
 	bindHandlers(s.Router)
 
-	// Default to :8080
+	// By default it serves on :8080 unless a
+	// PORT environment variable was defined.
 	s.Router.Run()
 }