diff --git a/tests/settings.py b/tests/settings.py
index 1ce0578a..a1f3ecff 100644
--- a/tests/settings.py
+++ b/tests/settings.py
@@ -2,7 +2,7 @@ DATABASES = {
     'default': {
         'ENGINE': os.environ.get('DB_ENGINE', 'django.db.backends.sqlite3'),
         'NAME': 'combo-test-%s' % os.environ.get(
-                "BRANCH_NAME", "").replace('/', '-')[:55]
+                "BRANCH_NAME", "").replace('/', '-')[:45]
     }
 }