diff --git a/usr.bin/last/last.c b/usr.bin/last/last.c
index 46304f1e242..e63e2c77311 100644
--- a/usr.bin/last/last.c
+++ b/usr.bin/last/last.c
@@ -57,6 +57,7 @@ __FBSDID("$FreeBSD$");
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
+#include <timeconv.h>
 #include <unistd.h>
 #include <utmp.h>
 #include <sys/queue.h>