diff --git a/module3/exo1/analyse-syndrome-grippal.Rmd b/module3/exo1/analyse-syndrome-grippal.Rmd
index 771e78faac371f23c921f7f7aecc87f2100e9059..0786f87c0c94d1ecfa2afeac267622104fe9dfb1 100644
--- a/module3/exo1/analyse-syndrome-grippal.Rmd
+++ b/module3/exo1/analyse-syndrome-grippal.Rmd
@@ -18,6 +18,12 @@ header-includes:
 ```{r setup, include=FALSE}
 knitr::opts_chunk$set(echo = TRUE)
 ```
+```{r}	
+data_file = "syndrome-grippal.csv"	
+if (!file.exists(data_file)) {	
+    download.file(data_url, data_file, method="auto")	
+}	
+```
 
 ## Préparation des données