diff --git a/core/trainers/framework/runner.py b/core/trainers/framework/runner.py
index baab7315033eff11f0b6be601b4757ed2e3707c9..761c6a748d9875f12ff48fb68da4822690fe8790 100644
--- a/core/trainers/framework/runner.py
+++ b/core/trainers/framework/runner.py
@@ -152,6 +152,7 @@ class RunnerBase(object):
         metrics_format.append("{}: {{:.2f}}s".format("time_each_interval"))
 
         metrics_names = ["total_batch"]
+
         for name, var in metrics.items():
             metrics_names.append(name)
             metrics_varnames.append(var.name)