diff --git a/Makefile b/Makefile
index 551399c..2f32bc9 100644
--- a/Makefile
+++ b/Makefile
@@ -58,7 +58,8 @@ GEN_SCRIPTS=					\
 	gen-pve-firewall-host-opts.pl		\
 	gen-pve-firewall-macros-adoc.pl		\
 	gen-pve-firewall-rules-opts.pl		\
-	gen-pve-firewall-vm-opts.pl
+	gen-pve-firewall-vm-opts.pl		\
+	gen-output-format-opts.pl
 
 API_VIEWER_SOURCES=				\
 	api-viewer/index.html			\