diff --git a/app.py b/app.py
index 6e908a8..590ef10 100644
--- a/app.py
+++ b/app.py
@@ -37,7 +37,7 @@ def response_minify(response):
 def handle_message(data):
     current_time = datetime.now().replace(
         microsecond=0).isoformat()
-    print(current_time + ' ' + data)
+    print(f'{current_time} {data}')
 
 
 @app.route("/api/status", methods=['GET', 'POST'])