diff --git a/appl/ftp/ftp/security.h b/appl/ftp/ftp/security.h
index a2611028c..a910f1c37 100644
--- a/appl/ftp/ftp/security.h
+++ b/appl/ftp/ftp/security.h
@@ -48,11 +48,6 @@ enum protection_level {
     prot_private 
 };
 
-extern enum protection_level command_prot;
-extern enum protection_level data_prot;
-extern size_t buffer_size;
-extern void *data_buffer;
-
 struct sec_client_mech {
     char *name;
     size_t size;