diff --git a/doc/conf.py b/doc/conf.py
index d344dd29..f1c8aee1 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -46,7 +46,7 @@
 
 os.system('mkdir _static')
 os.system('install -v -D css/custom.css _static/css/custom.css')
-os.system('install -v -D js/expand_toc_tree.js _static/js/expand_toc_tree.js')
+# os.system('install -v -D js/expand_toc_tree.js _static/js/expand_toc_tree.js')
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -221,7 +221,7 @@
 ]
 
 html_js_files = [
-    'js/expand_toc_tree.js'
+    # 'js/expand_toc_tree.js'
 ]
 
 # -- Options for HTMLHelp output ------------------------------------------