diff --git a/galaxykit/client.py b/galaxykit/client.py
index 7dda2ff..1057cff 100644
--- a/galaxykit/client.py
+++ b/galaxykit/client.py
@@ -195,7 +195,7 @@ def check_or_refresh_gateway_session(self):
         self.headers = self.gw_client.headers
 
         for cookie in self.response.cookies:
-            if cookie.name != "gateway_sessionid":
+            if not cookie.name.startswith("gateway_sessionid"):
                 continue
             self.session_expires = cookie.expires
             break