diff --git a/gamutrfwaterfall/gamutrfwaterfall/flask_handler.py b/gamutrfwaterfall/gamutrfwaterfall/flask_handler.py
index bae37a10..df8f7e7b 100644
--- a/gamutrfwaterfall/gamutrfwaterfall/flask_handler.py
+++ b/gamutrfwaterfall/gamutrfwaterfall/flask_handler.py
@@ -186,7 +186,9 @@ def serve(self, path):
         except ValueError:
             pass
 
-        return self.serve_meta(os.path.basename(self.savefig_path))
+        if path:
+            return self.serve_meta(os.path.basename(self.savefig_path))
+        return "%s: not found" % path
 
     def serve_predictions_content(self):
         return send_from_directory(self.tempdir, self.predictions_file)