--- sympy-sympy-1.4/README.rst.orig	2019-04-09 18:29:25.000000000 -0600
+++ sympy-sympy-1.4/README.rst	2019-04-17 14:31:01.408877172 -0600
@@ -240,7 +240,7 @@ To cite SymPy in publications use
 
 A BibTeX entry for LaTeX users is
 
-.. code-block:: none
+.. code-block:: BibTeX
 
     @article{10.7717/peerj-cs.103,
      title = {SymPy: symbolic computing in Python},