diff --git a/python/paddle/fluid/evaluator.py b/python/paddle/fluid/evaluator.py
index 5f053843189f003bfb017ff4d25eb15225ad719d..38c6a98279021a1a28a46078a0af47ea97bd4aeb 100644
--- a/python/paddle/fluid/evaluator.py
+++ b/python/paddle/fluid/evaluator.py
@@ -232,7 +232,7 @@ class EditDistance(Evaluator):
             distance, instance_error = distance_evaluator.eval(exe)
 
         In the above example:
-        'distance' is the average of the edit distance rate in a pass.
+        'distance' is the average of the edit distance in a pass.
         'instance_error' is the instance error rate in a pass.
 
     """