diff --git a/lectures/_config.yml b/lectures/_config.yml
index 6b99e06b..44e6b69a 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -34,6 +34,9 @@ latex:
   latex_documents:
     targetname: quantecon-python-intro.tex
 
+mystnb:
+  nb_code_prompt_show: "Show {type}"
+
 sphinx:
   extra_extensions: [sphinx_multitoc_numbering, sphinxext.rediraffe, sphinx_exercise, sphinx_togglebutton, sphinx.ext.intersphinx, sphinx_proof, sphinx_tojupyter] 
   config: