diff --git a/remarkbox/__init__.py b/remarkbox/__init__.py
index 863097f..a005a2a 100644
--- a/remarkbox/__init__.py
+++ b/remarkbox/__init__.py
@@ -524,8 +524,8 @@ def main(global_config, **settings):
     def add_node_order(request):
         return request.params.get("order", request.namespace.node_order)
 
-    def add_mathjax(request):
-        return "true" if request.namespace.mathjax else "false"
+    def add_katex(request):
+        return "true" if request.namespace.katex else "false"
 
     def add_theme_mode(request):
         """
@@ -604,7 +604,7 @@ def main(global_config, **settings):
     config.add_request_method(add_page_size, "page_size", reify=True)
     config.add_request_method(add_page_offset, "page_offset", reify=True)
     config.add_request_method(add_node_order, "node_order", reify=True)
-    config.add_request_method(add_mathjax, "mathjax", reify=True)
+    config.add_request_method(add_katex, "katex", reify=True)
     config.add_request_method(add_theme_mode, "theme_mode", reify=True)
 
     # all of the web application routes.