diff --git a/docs/conf.py b/docs/conf.py
index 0e7e21b2e02..a5df3b8f1bf 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -218,7 +218,7 @@ graphviz_output_format = 'svg'
 
 # -- Options for hawkmoth -------------------------------------------------
 
-hawkmoth_root = os.path.abspath('..')
+hawkmoth_root = os.path.abspath(os.pardir)
 hawkmoth_clang = [
   '-Idocs/header-stubs/',
   '-Iinclude/',