diff --git a/adjutant/settings.py b/adjutant/settings.py
index dc05229..b0aaddd 100644
--- a/adjutant/settings.py
+++ b/adjutant/settings.py
@@ -172,7 +172,7 @@ PLUGIN_SETTINGS = CONFIG.get('PLUGIN_SETTINGS', {})
 
 ROLES_MAPPING = CONFIG['ROLES_MAPPING']
 
-PROJECT_QUOTA_SIZES = CONFIG['PROJECT_QUOTA_SIZES']
+PROJECT_QUOTA_SIZES = CONFIG.get('PROJECT_QUOTA_SIZES')
 
 # Defaults for backwards compatibility.
 ACTIVE_TASKVIEWS = CONFIG.get(