diff --git a/usr.sbin/rtadvd/config.c b/usr.sbin/rtadvd/config.c
index 27bedd7e5f2..09e4eac659b 100644
--- a/usr.sbin/rtadvd/config.c
+++ b/usr.sbin/rtadvd/config.c
@@ -53,6 +53,7 @@
 #include <syslog.h>
 #include <errno.h>
 #include <string.h>
+#include <search.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <ifaddrs.h>
diff --git a/usr.sbin/rtadvd/timer.c b/usr.sbin/rtadvd/timer.c
index fb9f299a287..238bd8d5b72 100644
--- a/usr.sbin/rtadvd/timer.c
+++ b/usr.sbin/rtadvd/timer.c
@@ -36,6 +36,7 @@
 #include <syslog.h>
 #include <stdlib.h>
 #include <string.h>
+#include <search.h>
 #include "timer.h"
 
 static struct rtadvd_timer timer_head;