diff --git a/docs/conf.py b/docs/conf.py
index 9289e821fa..c600633033 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -45,6 +45,7 @@ needs_sphinx = "4.5.0"
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = [
     "djangodocs",
+    "sphinx.ext.doctest",
     "sphinx.ext.extlinks",
     "sphinx.ext.intersphinx",
     "sphinx.ext.autosectionlabel",