diff --git a/tensorflow/python/ops/math_ops.py b/tensorflow/python/ops/math_ops.py
index d5dfc646cd8ac3..c68c235828b1cb 100644
--- a/tensorflow/python/ops/math_ops.py
+++ b/tensorflow/python/ops/math_ops.py
@@ -640,7 +640,7 @@ def cast(x, dtype, name=None):
 
   ```python
   x = tf.constant([1.8, 2.2], dtype=tf.float32)
-  tf.cast(x, tf.int32)  # [1, 2], dtype=tf.int32
+  tf.dtypes.cast(x, tf.int32)  # [1, 2], dtype=tf.int32
   ```
 
   The operation supports data types (for `x` and `dtype`) of