diff --git a/docs/conf.py b/docs/conf.py
index e3b7c753..754c8854 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -26,6 +26,8 @@
 
 # -- General configuration ------------------------------------------------
 
+html_baseurl = os.environ.get('READTHEDOCS_CANONICAL_URL', '')
+
 # If your documentation needs a minimal Sphinx version, state it here.
 needs_sphinx = '1.5.3'