diff --git a/01_lois_de_newton.md b/02_lois_de_newton.md
similarity index 100%
rename from 01_lois_de_newton.md
rename to 02_lois_de_newton.md
diff --git a/Makefile b/Makefile
index eff634933f702343c0aaf211416a58693dbf739d..6bf89ba85983b271854fd915948543588d04246d 100644
--- a/Makefile
+++ b/Makefile
@@ -20,10 +20,10 @@ HTMLOPTIONS += --mathjax=MathJax.js
 
 all:  cours.pdf cours.html
 
-cours.pdf: 00_macros.md 01_analyse_dimensionnelle.md 01_lois_de_newton.md
+cours.pdf: 00_macros.md 01_analyse_dimensionnelle.md 02_lois_de_newton.md
 	pandoc -s $(OPTIONS) $(PDFOPTIONS) -o $@ $^ --metadata-file metadata.yaml
 
-cours.html: 00_macros.md 01_analyse_dimensionnelle.md 01_lois_de_newton.md
+cours.html: 00_macros.md 01_analyse_dimensionnelle.md 02_lois_de_newton.md
 	pandoc -s $(OPTIONS) $(HTMLOPTIONS) -o $@ $^ --metadata-file metadata.yaml
 
 deploy: all