diff --git a/Makefile b/Makefile
index 98b3eaa..edbf839 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,9 @@
 TEX=slides.tex
-all: $(TEX)
-	pdflatex $(TEX)
-	pdflatex $(TEX)
 
+all: $(TEX:.tex=.pdf)
 
+%.pdf: %.tex
+	latexmk -pdf $<
+
+upload-tobast: $(TEX:.tex=.pdf)
+	scp slides.pdf www.tobast:~/tobast.fr/public_html/m2/absint/slides.pdf