diff --git a/software/jupyter/buildout.hash.cfg b/software/jupyter/buildout.hash.cfg
index f4c9dc4fe3582aa14d1404ba22d58aeb5065e373..3470f14257a3f84f9292bad835a0db188cb90450 100644
--- a/software/jupyter/buildout.hash.cfg
+++ b/software/jupyter/buildout.hash.cfg
@@ -36,4 +36,4 @@ md5sum = 33547be93a67530165e079dc3ecfdac3
 
 [custom-js]
 filename = custom.js
-md5sum = 0bf9e2eb1718b14307265fe05a167018
+md5sum = df0149d5b6b58a17270715957db35f82
diff --git a/software/jupyter/custom.js b/software/jupyter/custom.js
index 53b588cdc50a201f94910c3cd1907c53be5a6f6c..20da10f38af7328421d44ff70dc12d171283206a 100644
--- a/software/jupyter/custom.js
+++ b/software/jupyter/custom.js
@@ -81,8 +81,8 @@
  * @static
  */
 
-$([jupyter.events]).on('notebook_loaded.Notebook', function(){
-  var kernelname = jupyter.notebook.kernel_selector.current_selection;
+$([Jupyter.events]).on('notebook_loaded.Notebook', function(){
+  var kernelname = Jupyter.notebook.kernel_selector.current_selection;
   var display_text="<div class='output_subarea output_text output_result'>\
   <pre>Follow these steps to customize your notebook with ERP5 kernel :-</br>\
   1. Make sure you have 'erp5_data_notebook' business template installed in your ERP5</br>\