1 files changed, 2 insertions, 1 deletions

diff --git a/src/lib/libc/stdlib/drand48.c b/src/lib/libc/stdlib/drand48.c
index 2be23d4c7a..429e4cf378 100644
--- a/src/lib/libc/stdlib/drand48.c
+++ b/src/lib/libc/stdlib/drand48.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: drand48.c,v 1.6 2015/08/27 04:33:31 guenther Exp $ */
+/*      $OpenBSD: drand48.c,v 1.7 2015/09/14 13:30:17 guenther Exp $ */
 /*
  * Copyright (c) 1993 Martin Birgmeier
  * All rights reserved.
@@ -12,6 +12,7 @@
  * to anyone/anything when using this software.
  */
 
+#include <math.h>
 #include "rand48.h"
 
 double