diff --git a/backend/auth/session.py b/backend/auth/session.py
index e5c597f..812f207 100644
--- a/backend/auth/session.py
+++ b/backend/auth/session.py
@@ -12,11 +12,11 @@ class SessionData():
     __expires_in: int 
     __creation_date: datetime.datetime
 
-    def __init__(self, __access_token, __refresh_token, __expires_in, __creation_date):
+    def __init__(self, __access_token, __refresh_token, __expires_in, __creation_date = None):
         self.__access_token = __access_token
         self.__refresh_token = __refresh_token
         self.__expires_in = __expires_in
-        self.__creation_date = __creation_date
+        self.__creation_date = __creation_date or datetime.datetime.now()
 
     def nearly_expired(self, before=30):
         delta_time = datetime.datetime.now() -  self.__creation_date - before