diff --git a/tempest/config.py b/tempest/config.py
index 8c014bf..fcfeee5 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -217,7 +217,7 @@
     @property
     def username(self):
         """Username to use for Images API requests. Defaults to 'demo'."""
-        return self.get("user", "demo")
+        return self.get("username", "demo")
 
     @property
     def password(self):