diff --git a/configure.ac b/configure.ac
index 7b5bb67d5e77d1fd07b2fdf49b59d1335ed1e951..32ab0472bf640a93bfa11d73086b38019ff2f6e0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -186,7 +186,7 @@ AC_TYPE_SSIZE_T
 AC_DEFINE([DSFMT_MEXP], [521], [DSFMT parameters.])
 
 # Checks for library functions.
-AC_CHECK_FUNCS([clock_gettime epoll_wait fgetln getline kqueue madvise poll posix_memalign pselect pthread_setaffinity_np regcomp select sendmmsg setgroups])
+AC_CHECK_FUNCS([clock_gettime gettimeofday epoll_wait fgetln getline kqueue madvise poll posix_memalign pselect pthread_setaffinity_np regcomp select sendmmsg setgroups])
 
 # Check for cpu_set_t/cpuset_t compatibility
 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]], [[cpu_set_t set; CPU_ZERO(&set);]])],