diff --git a/Doc/library/unittest.mock.rst b/Doc/library/unittest.mock.rst
index 84f34a0696a26c..b44b8dc2d20a57 100644
--- a/Doc/library/unittest.mock.rst
+++ b/Doc/library/unittest.mock.rst
@@ -1958,7 +1958,7 @@ Imagine we have a project that we want to test with the following structure::
 
 Now we want to test ``some_function`` but we want to mock out ``SomeClass`` using
 :func:`patch`. The problem is that when we import module b, which we will have to
-do then it imports ``SomeClass`` from module a. If we use :func:`patch` to mock out
+do when it imports ``SomeClass`` from module a. If we use :func:`patch` to mock out
 ``a.SomeClass`` then it will have no effect on our test; module b already has a
 reference to the *real* ``SomeClass`` and it looks like our patching had no
 effect.