Hi, I found `ox-md` exporter drop src-block language information. My patch fixes the behavior; to embed src-block language information using markdown src block grammar. 1. Open some buffer 2. Tnsert below code 3. Turn on `org-mode` 4. `C-c C-e m M` (export as markdown in temp buffer) ## org source ```org #+begin_src python print(1 + 2) #+end_src #+begin_src emacs-lisp (print "hello") #+end_src #+begin_src something source code #+end_src ``` ## before ```markdown # Table of Contents print(1 + 2) (print "hello") something source code ``` ## after ```markdown # Table of Contents ```python print(1 + 2) ``` ```emacs-lisp (print "hello") ``` ``` something source code ``` ```