diff --git a/convlab/policy/emoUS/evaluate.py b/convlab/policy/emoUS/evaluate.py
index 462c1dc8d05dc21af95d5af1459d7a0bb71635f5..e6ac3968902371d99d511735b282fb76f2311436 100644
--- a/convlab/policy/emoUS/evaluate.py
+++ b/convlab/policy/emoUS/evaluate.py
@@ -98,7 +98,7 @@ class Evaluator:
         if self.sample:
             mode = "sample"
 
-        for dialog in tqdm(in_file['dialog'][:1]):
+        for dialog in tqdm(in_file['dialog']):
             inputs = dialog["in"]
             labels = self.usr._parse_output(dialog["out"])