diff --git a/math/test-misc.c b/math/test-misc.c
index 1ba2943a5a..ba34f92e9e 100644
--- a/math/test-misc.c
+++ b/math/test-misc.c
@@ -1,5 +1,5 @@
 /* Miscellaneous tests which don't fit anywhere else.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2001 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -18,6 +18,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <fenv.h>
+#include <float.h>
 #include <ieee754.h>
 #include <math.h>
 #include <stdio.h>