diff --git a/rtd/source/conf.py b/rtd/source/conf.py
index 7623d803ab3e7f7cb0590d6670d632d52bf5377e..21a0a041e85b3b86347bede42501fa7089b5e3f5 100644
--- a/rtd/source/conf.py
+++ b/rtd/source/conf.py
@@ -26,9 +26,9 @@ exclude_patterns = []
 autodoc_member_order = 'bysource'
 
 # math
-from sphinx_math_dollar import NODE_BLACKLIST
-from docutils.nodes import header,FixedTextElement, literal,math
-from docutils.nodes import  comment, doctest_block, image, literal_block, math_block, paragraph, pending, raw, rubric, substitution_definition, target
+#from sphinx_math_dollar import NODE_BLACKLIST
+#from docutils.nodes import header,FixedTextElement, literal,math
+#from docutils.nodes import  comment, doctest_block, image, literal_block, math_block, paragraph, pending, raw, rubric, substitution_definition, target
 mathjax_config = {
     'tex2jax': {
         'inlineMath': [ ["\\(","\\)"] ],