diff --git a/doc/source/api-reference/qibo.rst b/doc/source/api-reference/qibo.rst
index a0e39840f6..5e7001e143 100644
--- a/doc/source/api-reference/qibo.rst
+++ b/doc/source/api-reference/qibo.rst
@@ -2120,13 +2120,13 @@ As for the other backends, the Clifford backend can be set with
 by specifying the engine used for calculation, if not provided the current :class:`qibo.backends.GlobalBackend` is used
 
 .. testcode::  python
-    from qibo import set_backend
-    from qibo.backends import CliffordBackend
+
+    import qibo
 
     # setting numpy as the global backend
-    set_backend("numpy")
+    qibo.set_backend("numpy")
     # the clifford backend will use the numpy backend as engine
-    backend = CliffordBackend()
+    backend = qibo.backends.CliffordBackend()
 
 Alternatively, a Clifford circuit can also be executed starting from the :class:`qibo.quantum_info.clifford.Clifford` object