diff --git a/doc/developer/conf.py b/doc/developer/conf.py
index 634f4aa80420..a5b514814080 100644
--- a/doc/developer/conf.py
+++ b/doc/developer/conf.py
@@ -71,6 +71,7 @@
 html_baseurl = os.environ.get("READTHEDOCS_CANONICAL_URL", "")
 
 # Tell Jinja2 templates the build is running on Read the Docs
+html_context = {}
 if os.environ.get("READTHEDOCS", "") == "True":
     html_context["READTHEDOCS"] = True
 
diff --git a/doc/user/conf.py b/doc/user/conf.py
index 236a90e9026b..f9f178f5ff1c 100644
--- a/doc/user/conf.py
+++ b/doc/user/conf.py
@@ -73,11 +73,11 @@
 html_baseurl = os.environ.get("READTHEDOCS_CANONICAL_URL", "")
 
 # Tell Jinja2 templates the build is running on Read the Docs
+html_context = {}
 if os.environ.get("READTHEDOCS", "") == "True":
     html_context["READTHEDOCS"] = True
 
 
-
 # -----------------------------------------------------------------------------
 # Extract values from codebase for substitution into docs.
 # -----------------------------------------------------------------------------