diff --git a/Makefile b/Makefile
index 88aa4566c27c2430eb6fafd0ef0ea1a74eae056a..2bccf40842de354a998bf3567722317be89d24bb 100644
--- a/Makefile
+++ b/Makefile
@@ -18,5 +18,5 @@ ICHLL_Brenon.docx: $(DEPEDENCIES)
 	dot -Tpng $< -o $@
 
 %.docx: %.md
-	LANG=fr_FR.UTF-8 pandoc $< -o $@
+	LANG=fr_FR.UTF-8 pandoc $< --to docx --number-sections -o $@