diff --git a/tests/config.py b/tests/config.py
index eb1cd7e..22f8441 100644
--- a/tests/config.py
+++ b/tests/config.py
@@ -1,5 +1,6 @@
 SQLALCHEMY_DATABASE_URI = 'sqlite://'
 SQLALCHEMY_TRACK_MODIFICATIONS = True
 PRESERVE_CONTEXT_ON_EXCEPTION = False
+ESALES_URL = ''
 TESTING = True
 DEBUG = True