diff --git a/module2/exo1/module2/exo1/toy_document_en.Rmd b/module2/exo1/module2/exo1/toy_document_en.Rmd
index f8ac4f3995ba8fcff654f5dbe7caac04b69793c3..d2d0fb1828d9be2ea212112ca237379b65b0c9c1 100644
--- a/module2/exo1/module2/exo1/toy_document_en.Rmd
+++ b/module2/exo1/module2/exo1/toy_document_en.Rmd
@@ -39,4 +39,5 @@ many times, on average, X
 2
 is smaller than 1:
 In [4]: 4*np.mean(accept)
-Out[4]: 3.1120000000000001
\ No newline at end of file
+Out[4]: 3.1120000000000001
+{r}## [1] 3.156
\ No newline at end of file