diff --git a/saison-3/sessions/Makefile b/saison-3/sessions/Makefile
new file mode 100644
index 0000000..4ba141b
--- /dev/null
+++ b/saison-3/sessions/Makefile
@@ -0,0 +1,2 @@
+%.pdf: %.md
+	pandoc --pdf-engine=xelatex -t beamer $< -o $@