diff --git a/doc/source/user_guide/groupby.rst b/doc/source/user_guide/groupby.rst
index ba3fb17cc8764..5d8ef7ce02097 100644
--- a/doc/source/user_guide/groupby.rst
+++ b/doc/source/user_guide/groupby.rst
@@ -839,10 +839,10 @@ Alternatively, the built-in methods could be used to produce the same outputs.
 
 .. ipython:: python
 
-   max = ts.groupby(lambda x: x.year).transform("max")
-   min = ts.groupby(lambda x: x.year).transform("min")
+   max_ts = ts.groupby(lambda x: x.year).transform("max")
+   min_ts = ts.groupby(lambda x: x.year).transform("min")
 
-   max - min
+   max_ts - min_ts
 
 Another common data transform is to replace missing data with the group mean.