diff --git a/tensorflow/core/api_def/base_api/api_def_Acosh.pbtxt b/tensorflow/core/api_def/base_api/api_def_Acosh.pbtxt
index d9690b622b7..01366662c80 100644
--- a/tensorflow/core/api_def/base_api/api_def_Acosh.pbtxt
+++ b/tensorflow/core/api_def/base_api/api_def_Acosh.pbtxt
@@ -6,6 +6,6 @@ Given an input tensor, the function computes inverse hyperbolic cosine of every
 Input range is [1, infinity). It returns `nan` if the input lies outside the range.
 ```python
 tensor `x` is [-2, -0.5, 1, 1.2, 200, 10000]
-tf.acosh(x) ==> [nan nan 0. 0.62236255 5.9914584 9.903487]
+tf.math.acosh(x) ==> [nan nan 0. 0.62236255 5.9914584 9.903487]
 END
 }