diff --git a/digsandpaper/main.py b/digsandpaper/main.py
index <HASH>..<HASH> 100644
--- a/digsandpaper/main.py
+++ b/digsandpaper/main.py
@@ -39,7 +39,7 @@ def main(args):
     engine = Engine(config)
     if server:
         search_server.set_engine(engine)
-        search_server.app.run(host, port)
+        search_server.app.run(host, port, threaded=True)
     else:
         query = load_json_file(query_file)
         result = engine.execute(query)
Enabled threading for flask