diff --git a/python/oneflow/framework/docstr/math_ops.py b/python/oneflow/framework/docstr/math_ops.py
index 783d30085e3..be23da40511 100644
--- a/python/oneflow/framework/docstr/math_ops.py
+++ b/python/oneflow/framework/docstr/math_ops.py
@@ -1411,7 +1411,6 @@
         oneflow.Size([3, 2, 5, 6])
         >>> output[2].size()
         oneflow.Size([3, 1, 5, 6])
-        >>> output[3].size()
     """,
 )
 
@@ -1451,7 +1450,6 @@
         oneflow.Size([2, 4, 5, 6])
         >>> output[2].size()
         oneflow.Size([1, 4, 5, 6])
-        >>> output[3].size()
     """,
 )