diff --git a/doc/userguide/conf.py b/doc/userguide/conf.py
index 48d5e24dad..64f04b3eff 100644
--- a/doc/userguide/conf.py
+++ b/doc/userguide/conf.py
@@ -138,7 +138,6 @@ if not on_rtd:
     try:
         import sphinx_rtd_theme
         html_theme = 'sphinx_rtd_theme'
-        html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
     except:
         html_theme = 'default'
 else: