diff --git a/include/windconf.h b/include/windconf.h
index b7330668c..81ad8baeb 100644
--- a/include/windconf.h
+++ b/include/windconf.h
@@ -33,6 +33,7 @@
 #define OPTIONS_AT_RUNTIME  /* build info done at runtime not text file */
 
 #define EARLY_CONFIGFILE_PASS
+#define TTY_PERM_INVENT
 
 /*
  * -----------------------------------------------------------------