diff --git a/appl/ftp/ftp/security.h b/appl/ftp/ftp/security.h
index 2278e6cf7..a3d667656 100644
--- a/appl/ftp/ftp/security.h
+++ b/appl/ftp/ftp/security.h
@@ -77,6 +77,7 @@ struct sec_server_mech {
 #define AUTH_ERROR	2
 
 extern int ftp_do_gss_bindings;
+extern int ftp_do_gss_delegate;
 #ifdef FTP_SERVER
 extern struct sec_server_mech krb4_server_mech, gss_server_mech;
 #else