diff --git a/viringo/config.py b/viringo/config.py
index 8674aef..49ad666 100644
--- a/viringo/config.py
+++ b/viringo/config.py
@@ -7,7 +7,7 @@
 # URL used for the DataCite REST API
 DATACITE_API_URL = os.getenv('DATACITE_API_URL', 'https://api.datacite.org')
 # Admin credentials for the API
-DATACITE_API_ADMIN_USERNAME = os.getenv('DATACITE_API_ADMIN_PASSWORD', 'admin')
+DATACITE_API_ADMIN_USERNAME = os.getenv('DATACITE_API_ADMIN_USERNAME', 'admin')
 DATACITE_API_ADMIN_PASSWORD = os.getenv('DATACITE_API_ADMIN_PASSWORD')
 
 # Name used to identifier the repository.