diff --git a/python/paddle/nn/functional/activation.py b/python/paddle/nn/functional/activation.py
index a37ed6f91edf2..7af7ae8ddd7ab 100644
--- a/python/paddle/nn/functional/activation.py
+++ b/python/paddle/nn/functional/activation.py
@@ -549,7 +549,7 @@ def prelu(x, weight, data_format="NCHW", name=None):
 
 
 def rrelu(x, lower=1. / 8., upper=1. / 3., training=True, name=None):
-    """
+    r"""
     rrelu activation.
 
     Applies the randomized leaky rectified liner unit function to improve generalization performance,
diff --git a/python/paddle/nn/layer/activation.py b/python/paddle/nn/layer/activation.py
index 32c77104f53fb..1a3768e919042 100644
--- a/python/paddle/nn/layer/activation.py
+++ b/python/paddle/nn/layer/activation.py
@@ -437,7 +437,7 @@ def extra_repr(self):
 
 
 class RReLU(Layer):
-    """
+    r"""
     RReLU activation layer.
 
     Applies the randomized leaky rectified liner unit function to improve generalization performance,