diff --git a/core/trainers/single_infer.py b/core/trainers/single_infer.py
index 873ff010416a4a3eecb88edb63dbb9c2adbf27da..0f1c92f3f2d948c76d4cd2b0fdcca131b99cfc92 100755
--- a/core/trainers/single_infer.py
+++ b/core/trainers/single_infer.py
@@ -229,7 +229,7 @@ class SingleInfer(TranspileTrainer):
         fetch_alias = []
         fetch_period = int(
             envs.get_global_env("runner." + self._runner_name +
-                                ".fetch_period", 20))
+                                ".print_interval", 20))
         metrics = model_class.get_infer_results()
         if metrics:
             fetch_vars = metrics.values()
@@ -260,7 +260,7 @@ class SingleInfer(TranspileTrainer):
         metrics_format = []
         fetch_period = int(
             envs.get_global_env("runner." + self._runner_name +
-                                ".fetch_period", 20))
+                                ".print_interval", 20))
         metrics_format.append("{}: {{}}".format("batch"))
         for name, var in metrics.items():
             metrics_varnames.append(var.name)
diff --git a/core/trainers/single_trainer.py b/core/trainers/single_trainer.py
index 274047a0127d6ef2df601284cb9cd1e67335cf85..66daf40276c0230505c00baa5ddf79449198074c 100755
--- a/core/trainers/single_trainer.py
+++ b/core/trainers/single_trainer.py
@@ -226,7 +226,7 @@ class SingleTrainer(TranspileTrainer):
         fetch_alias = []
         fetch_period = int(
             envs.get_global_env("runner." + self._runner_name +
-                                ".fetch_period", 20))
+                                ".print_interval", 20))
         metrics = model_class.get_metrics()
         if metrics:
             fetch_vars = metrics.values()
@@ -253,7 +253,7 @@ class SingleTrainer(TranspileTrainer):
         fetch_alias = []
         fetch_period = int(
             envs.get_global_env("runner." + self._runner_name +
-                                ".fetch_period", 20))
+                                ".print_interval", 20))
         metrics = model_class.get_metrics()
         if metrics:
             fetch_vars = metrics.values()
diff --git a/models/rank/dnn/config.yaml b/models/rank/dnn/config.yaml
index 57bb81d56721ff875c8a9a747ed56ac100582ec2..fd64935dd2080291fc13911befc0481604c3464a 100755
--- a/models/rank/dnn/config.yaml
+++ b/models/rank/dnn/config.yaml
@@ -62,7 +62,7 @@ runner:
   save_inference_feed_varnames: [] # feed vars of save inference
   save_inference_fetch_varnames: [] # fetch vars of save inference
   init_model_path: "" # load model path
-  fetch_period: 10
+  print_interval: 10
 - name: runner2
   class: single_infer
   # num of epochs