diff --git a/server.py b/server.py
index 280043c..5a94e7f 100644
--- a/server.py
+++ b/server.py
@@ -70,7 +70,8 @@ def wallet(path):
         address = requests.get('http://100.66.107.77:8080')
         # Set cookie
         resp = make_response(address.text, 200, {'Content-Type': 'text/plain'})
-        resp.set_cookie('HNS', address.text)
+        # Cookie should last 1 week
+        resp.set_cookie('HNS', address.text, max_age=604800)
         return resp