Index: doc/next-tutorial.txt
===================================================================
diff -u -r542e84bd66ce4c3cd28e4ba1fd41f2151d8cb043 -re92bab3b262d521ac909fd8956352473909197fb
--- doc/next-tutorial.txt	(.../next-tutorial.txt)	(revision 542e84bd66ce4c3cd28e4ba1fd41f2151d8cb043)
+++ doc/next-tutorial.txt	(.../next-tutorial.txt)	(revision e92bab3b262d521ac909fd8956352473909197fb)
@@ -1346,7 +1346,7 @@
 }
 
 # Register an unknown handler as a method of ::nx::Class
-::nsf::unknown::add nx {::nx::Class __unknown}
+::nsf::object::unknown::add nx {::nx::Class __unknown}
 
 ::nx::Object create o {
   # The class M is unknown at this point
@@ -1370,10 +1370,10 @@
 [source,tcl,numbers]
 --------------------------------------------------
 # Interface for unknown handlers:
-# nsf::unknown::add /key/ /handler/
-# nsf::unknown::get /key/
-# nsf::unknown::delete /key/
-# nsf::unknown::keys
+# nsf::object::unknown::add /key/ /handler/
+# nsf::object::unknown::get /key/
+# nsf::object::unknown::delete /key/
+# nsf::object::unknown::keys
 --------------------------------------------------