diff --git a/module2/ressources/emacs_orgmode.org b/module2/ressources/emacs_orgmode.org
index 5ceb2cdad5a96e6a1722479ca4fffbaa6e48de95..ea25453c5c3f3140a3744715bdd64640a6cc50d9 100644
--- a/module2/ressources/emacs_orgmode.org
+++ b/module2/ressources/emacs_orgmode.org
@@ -132,8 +132,8 @@ matplotlib.matplotlib_fname()
 #+end_src
 [[file:emacs_orgmode_images/matplotlib.png]]
 
-Open the =matplotlibrc= file and add a =#= at the beginning of the line
-starting with =backend=, which amounts to use the default =Agg= value.
+Open the =matplotlibrc= file and modify the line starting with =backend=
+to make it =backend : Agg=/
 
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