diff --git a/tcp_tests/settings.py b/tcp_tests/settings.py
index 54aafae..59b2bd0 100644
--- a/tcp_tests/settings.py
+++ b/tcp_tests/settings.py
@@ -99,6 +99,7 @@
                                             'external-pool01')
 
 STACK_INSTALL = os.environ.get('STACK_INSTALL', None)
+BATCH_SIZE = os.environ.get('BATCH_SIZE', None)
 SKIP_SYNC_TIME = get_var_as_bool("SKIP_SYNC_TIME", False)
 
 # OpenStack parameters to work with Heat stacks