diff --git a/secure/master.h b/secure/master.h
index 242a640..5bbe781 100644
--- a/secure/master.h
+++ b/secure/master.h
@@ -70,7 +70,7 @@
 mixed         give_uid_to_object(string datei,object po);
 void          save_wiz_file();
 mixed         load_uid_hook(string datei);
-mixed         clone_uid_hook(string blueprint,string new_name);
+mixed         clone_uid_hook(object blueprint,string new_name);
 protected mixed call_sefun(string sefun, varargs mixed args);
 
 // aus domains.c