diff --git a/docs/dev/adding_instruments/instrument.rst b/docs/dev/adding_instruments/instrument.rst
index 3ec8583e5..1344b8d5e 100644
--- a/docs/dev/adding_instruments/instrument.rst
+++ b/docs/dev/adding_instruments/instrument.rst
@@ -45,13 +45,6 @@ All standard instruments should be child class of :class:`Instrument <pymeasure.
 
 The most basic instrument, for our "Extreme 5000" example starts like this:
 
-.. testsetup::
-
-    # Behind the scene, replace Instrument with FakeInstrument to enable
-    # doctesting simple usage cases (default doctest group)
-    from pymeasure.instruments.fakes import FakeInstrument as Instrument
-
-
 .. testcode::
 
     #