2 files changed, 2 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 6a7c4cc6f..a61308709 100644
--- a/configure.ac
+++ b/configure.ac
@@ -226,6 +226,7 @@ AC_REPLACE_FUNCS([reallocarray strcasecmp strcasestr strlcat strlcpy strndup\
 AM_CONDITIONAL(POLL, [test "x$ac_cv_func_poll" = "xyes"])
 
 AC_CHECK_LIB([bsd], [arc4random_buf])
+AC_CHECK_FUNCS([arc4random_buf])
 
 AC_CHECK_DECLS([program_invocation_short_name], [], [], [[#include <errno.h>]])
 
diff --git a/os/auth.c b/os/auth.c
index 41b625db5..c7b333ca2 100644
--- a/os/auth.c
+++ b/os/auth.c
@@ -305,7 +305,7 @@ GenerateAuthorization(unsigned name_length,
 void
 GenerateRandomData(int len, char *buf)
 {
-#ifdef HAVE_ARC4RANDOMBUF
+#ifdef HAVE_ARC4RANDOM_BUF
     arc4random_buf(buf, len);
 #else
     int fd;