diff --git a/appl/kx/kxd.c b/appl/kx/kxd.c
index be2085172..322cd2d53 100644
--- a/appl/kx/kxd.c
+++ b/appl/kx/kxd.c
@@ -161,6 +161,10 @@ check_user_console ()
      return 0;
 }
 
+#ifndef HAVE_XAUWRITEAUTH
+#include "writeauth.c" /* XXX */
+#endif
+
 #ifndef INADDR_LOOPBACK
 #define INADDR_LOOPBACK 0x7f000001
 #endif