diff --git a/python/seldon_core/microservice.py b/python/seldon_core/microservice.py
index 436cc183b0..870e06ed58 100644
--- a/python/seldon_core/microservice.py
+++ b/python/seldon_core/microservice.py
@@ -186,7 +186,7 @@ def main():
 
     parts = args.interface_name.rsplit(".", 1)
     if len(parts) == 1:
-        logger.info("Importing ",args.interface_name)
+        logger.info("Importing %s",args.interface_name)
         interface_file = importlib.import_module(args.interface_name)
         user_class = getattr(interface_file, args.interface_name)
     else: