diff --git a/debian/debian_config_common.py b/debian/debian_config_common.py
index 391dcbd..001b7df 100644
--- a/debian/debian_config_common.py
+++ b/debian/debian_config_common.py
@@ -297,6 +297,8 @@ if PROJECT_NAME != 'wcs' and 'authentic2' not in INSTALLED_APPS:
 if 'authentic2' in INSTALLED_APPS:
     MIDDLEWARE = MIDDLEWARE + ('hobo.agent.authentic2.middleware.ProvisionningMiddleware',)
 
+# Allow big provisionning messages
+DATA_UPLOAD_MAX_MEMORY_SIZE = 50_000_000
 
 if PROJECT_NAME != 'wcs':
     # multitenant adaptations