diff --git a/Makefile b/Makefile
index 368a88df7fa8fb41b37e7c9dcef1f49cc2c0f090..1f6357d4014204e75119033b14417a46caacb152 100644
--- a/Makefile
+++ b/Makefile
@@ -30,15 +30,15 @@ hakyll_gen: Analyse_Dimensionnelle.markdown Lois_de_Newton.markdown Charge_Elect
 
 Analyse_Dimensionnelle.markdown: 00_macros.md 01_analyse_dimensionnelle.md 10_footer.md
 	cat $^ > $@
-	sed -i "1i ---\ndate: $(shell git log --follow -p -1 --format=%cd --date=format:'%Y-%m-%d' -- 01_rappel.md | head -n 1)\nmathjax: on\n---" $@
+	sed -i "1i ---\ndate: $(shell git log --follow -p -1 --format=%cd --date=format:'%Y-%m-%d' -- 01_analyse_dimensionnelle.md | head -n 1)\nmathjax: on\n---" $@
 
 Lois_de_Newton.markdown: 00_macros.md 02_lois_de_newton.md 10_footer.md
 	cat $^ > $@
-	sed -i "1i ---\ndate: $(shell git log --follow -p -1 --format=%cd --date=format:'%Y-%m-%d' -- 01_rappel.md | head -n 1)\nmathjax: on\n---" $@
+	sed -i "1i ---\ndate: $(shell git log --follow -p -1 --format=%cd --date=format:'%Y-%m-%d' -- 02_lois_de_newton.md | head -n 1)\nmathjax: on\n---" $@
 
 Charge_Electrique_Champs_Electrique.markdown: 00_macros.md 03_charge_electrique_champs_electrique.md 10_footer.md
 	cat $^ > $@
-	sed -i "1i ---\ndate: $(shell git log --follow -p -1 --format=%cd --date=format:'%Y-%m-%d' -- 01_rappel.md | head -n 1)\nmathjax: on\n---" $@
+	sed -i "1i ---\ndate: $(shell git log --follow -p -1 --format=%cd --date=format:'%Y-%m-%d' -- 03_charge_electrique_champs_electrique.md | head -n 1)\nmathjax: on\n---" $@
 
 deploy: all
 	mkdir -p phys
@@ -46,4 +46,4 @@ deploy: all
 	cp cours.pdf phys/cours.pdf
 
 clean:
-	rm -f *.html *.pdf
+	rm -f *.html *.pdf *.markdown