diff --git a/configure.in b/configure.in
index dedbbebf3..245d3ae67 100644
--- a/configure.in
+++ b/configure.in
@@ -228,7 +228,7 @@ hstrerror)
 fi
 
 AC_BROKEN(chown daemon err errx fchown flock fnmatch getcwd)
-AC_BROKEN(getdtablesize getopt getusershell inet_aton initgroups)
+AC_BROKEN(getdtablesize getopt getusershell inet_aton initgroups iruserok)
 AC_BROKEN(lstat memmove mkstemp putenv rcmd readv setegid setenv)
 AC_BROKEN(seteuid setenv seteuid strcasecmp strdup strerror strftime)
 AC_BROKEN(strlwr strnlen strsep strtok_r strupr unsetenv)