diff --git a/configure.ac b/configure.ac
index 92bc87ac61..cbdf52afbd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -721,7 +721,7 @@ AC_FUNC_STRNLEN
 AC_FUNC_STRTOD
 AC_FUNC_UTIME_NULL
 AC_FUNC_VPRINTF
-AC_CHECK_FUNCS([atexit bzero dup2 endpwent floor ftruncate getcwd gethostbyname gethostname gettimeofday inet_ntoa isascii localtime_r memchr memmove memset mkdir munmap pow putenv re_comp regcomp rint select setenv socket sqrt strcasecmp strchr strcspn strdup strerror strncasecmp strndup strrchr strsep strspn strstr strtol unsetenv utime strtoq strcasestr asprintf vasprintf])
+AC_CHECK_FUNCS([atexit bzero dup2 endpwent floor ftruncate getcwd gethostbyname gethostname gettimeofday inet_ntoa isascii localtime_r memchr memmove memset mkdir munmap pow putenv re_comp regcomp rint select setenv socket sqrt strcasecmp strchr strcspn strdup strerror strncasecmp strndup strnlen strrchr strsep strspn strstr strtol unsetenv utime strtoq strcasestr asprintf vasprintf])
 
 AC_CONFIG_FILES([build_tools/menuselect-deps makeopts])
 AC_OUTPUT