diff --git a/doc/source/user_guide/missing_data.rst b/doc/source/user_guide/missing_data.rst
index 6c36a6470f841a..7bd5b65ed8717f 100644
--- a/doc/source/user_guide/missing_data.rst
+++ b/doc/source/user_guide/missing_data.rst
@@ -186,6 +186,7 @@ Sum/prod of empties/nans
 The sum of an empty or all-NA Series or column of a DataFrame is 0.
 
 .. ipython:: python
+   :okwarning:
 
    pd.Series([np.nan]).sum()
 
@@ -194,6 +195,7 @@ The sum of an empty or all-NA Series or column of a DataFrame is 0.
 The product of an empty or all-NA Series or column of a DataFrame is 1.
 
 .. ipython:: python
+   :okwarning:
 
    pd.Series([np.nan]).prod()