diff --git a/label_studio/core/settings/base.py b/label_studio/core/settings/base.py
index 98e23e9787c2..1760881663cb 100644
--- a/label_studio/core/settings/base.py
+++ b/label_studio/core/settings/base.py
@@ -102,6 +102,7 @@
             match = pattern.match(HOSTNAME)
             FORCE_SCRIPT_NAME = match.group(3)
             if FORCE_SCRIPT_NAME:
+                SESSION_COOKIE_PATH = FORCE_SCRIPT_NAME
                 logger.info('=> Django URL prefix is set to: %s', FORCE_SCRIPT_NAME)
 
 FRONTEND_HMR = get_bool_env('FRONTEND_HMR', False)