diff --git a/python/paddle/tensor/math.py b/python/paddle/tensor/math.py
index 05b9e0069da3d1f17687306f506d1487dbdb6c23..fe9d604251fc395b72317043f914a26f40813576 100644
--- a/python/paddle/tensor/math.py
+++ b/python/paddle/tensor/math.py
@@ -4027,7 +4027,7 @@ def lerp(x, y, weight, name=None):
             y = paddle.empty([4], dtype='float32')
             y.fill_(10.)
             out = paddle.lerp(x, y, 0.5)
-            # out: [5.5., 6., 6.5, 7.]
+            # out: [5.5, 6., 6.5, 7.]
 
     """
     if in_dygraph_mode():