diff --git a/Makefile b/Makefile
index ec13866..915aab0 100644
--- a/Makefile
+++ b/Makefile
@@ -19,6 +19,9 @@ token-validator/token-validator: token-validator/*.go
 pkg/challenge: pkg/challenge/adlin pkg/challenge/issue pkg/challenge/init pkg/challenge/ssl/ec_cert.pem
 	$(LINUXKIT) pkg build pkg/challenge/
 
+subject/adlin.6.gz: subject/adlin.6.md
+	make -C subject adlin.6.gz
+
 challenge-initrd.img: challenge.yml subject/adlin.6.gz subject/adlin-TP1-topologie.png pkg/challenge pkg/challenge/init pkg/shadow-up
 	$(LINUXKIT) build $<