diff --git a/python/paddle/device/cuda/__init__.py b/python/paddle/device/cuda/__init__.py
index e42b6031f6f08a6d3dbc73fe86fa7e5b17c1fbf5..4d1934aeed9fb5dfc0d9e2f03ac5c98eb6ab31d1 100644
--- a/python/paddle/device/cuda/__init__.py
+++ b/python/paddle/device/cuda/__init__.py
@@ -176,7 +176,7 @@ def stream_guard(stream):
     A context manager that specifies the current stream context by the given stream.
 
     Parameters:
-        stream(paddle.device.cuda.Stream): the selected stream. If stream is None, just yield. The default value is None.
+        stream(paddle.device.cuda.Stream): the selected stream. If stream is None, just yield.
 
     Examples:
         .. code-block:: python