diff --git a/docs/en/conf.py b/docs/en/conf.py
index 4e0c87b50..5155ac9a6 100644
--- a/docs/en/conf.py
+++ b/docs/en/conf.py
@@ -22,7 +22,7 @@ sys.path.append(os.path.abspath('_exts'))
 
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
-extensions = ['configurationblock', 'sphinx.ext.linkcode']
+extensions = ['configurationblock']
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']