diff --git a/docs/conf.py b/docs/conf.py
index 2fa2541717..0c24edb426 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -22,7 +22,8 @@
     __copyright__ as _copyright,
 )
 
-sys.path.append(os.path.abspath('sphinxext'))
+sys.path.append(os.path.abspath(
+    os.path.join(os.path.dirname(__file__), 'sphinxext')))
 from github_link import make_linkcode_resolve
 
 sys.path.insert(0, os.path.abspath('../wrapper'))