diff --git a/qwc_services_core/tenant_handler.py b/qwc_services_core/tenant_handler.py
index 5e3cf1c..7c93016 100644
--- a/qwc_services_core/tenant_handler.py
+++ b/qwc_services_core/tenant_handler.py
@@ -8,7 +8,7 @@
 from .runtime_config import RuntimeConfig
 
 
-DEFAULT_TENANT = 'default'
+DEFAULT_TENANT = os.environ.get('DEFAULT_TENANT', 'default')
 
 
 class TenantHandlerBase: