diff --git a/atmosphere/cmd/operator.py b/atmosphere/cmd/operator.py
index 9a1fc52..c8dad4b 100644
--- a/atmosphere/cmd/operator.py
+++ b/atmosphere/cmd/operator.py
@@ -9,7 +9,7 @@
 def main():
     LOG.info("Starting Atmosphere operator")
 
-    cfg = config.load_from_file()
+    cfg = config.Config.load_from_file()
 
     engine = flows.get_engine(cfg)
     engine.run()