diff --git a/contrib/blacklist/bin/blacklistctl.c b/contrib/blacklist/bin/blacklistctl.c
index 8cef404d74bf..e7c297f3f8ab 100644
--- a/contrib/blacklist/bin/blacklistctl.c
+++ b/contrib/blacklist/bin/blacklistctl.c
@@ -35,6 +35,7 @@
 #include <sys/cdefs.h>
 __RCSID("$NetBSD: blacklistctl.c,v 1.21 2016/11/02 03:15:07 jnemeth Exp $");
 
+#include <stdarg.h>
 #include <stdio.h>
 #include <time.h>
 #ifdef HAVE_LIBUTIL_H
diff --git a/lib/libpjdlog/pjdlog.c b/lib/libpjdlog/pjdlog.c
index eb7ddb2b7a88..72fb412345b2 100644
--- a/lib/libpjdlog/pjdlog.c
+++ b/lib/libpjdlog/pjdlog.c
@@ -43,8 +43,8 @@ __FBSDID("$FreeBSD$");
 #include <errno.h>
 #include <libutil.h>
 #include <limits.h>
-#include <printf.h>
 #include <stdarg.h>
+#include <printf.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/sbin/hastd/pjdlog.c b/sbin/hastd/pjdlog.c
index 9ac9a69b75da..9af694ba9951 100644
--- a/sbin/hastd/pjdlog.c
+++ b/sbin/hastd/pjdlog.c
@@ -41,8 +41,8 @@ __FBSDID("$FreeBSD$");
 #include <assert.h>
 #include <errno.h>
 #include <libutil.h>
-#include <printf.h>
 #include <stdarg.h>
+#include <printf.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>