Index: library/xotcl/library/xotcl2.tcl
===================================================================
diff -u -r542e84bd66ce4c3cd28e4ba1fd41f2151d8cb043 -r7a4aa128473965bdf6c33f8c2c55d034bffe89c4
--- library/xotcl/library/xotcl2.tcl	(.../xotcl2.tcl)	(revision 542e84bd66ce4c3cd28e4ba1fd41f2151d8cb043)
+++ library/xotcl/library/xotcl2.tcl	(.../xotcl2.tcl)	(revision 7a4aa128473965bdf6c33f8c2c55d034bffe89c4)
@@ -404,11 +404,11 @@
     ::nx::RelationSlot create ${oSlotContainer}::mixin  -forwardername object-mixin \
 	-elementtype mixinreg -multiplicity 0..n
     ::nx::RelationSlot create ${oSlotContainer}::filter -forwardername object-filter \
-	-multiplicity 0..n
+	-elementtype filterreg -multiplicity 0..n
     ::nx::RelationSlot create ${cSlotContainer}::instmixin  -forwardername class-mixin \
 	-elementtype mixinreg -multiplicity 0..n
     ::nx::RelationSlot create ${cSlotContainer}::instfilter -forwardername class-filter \
-	-multiplicity 0..n
+	-elementtype filterreg -multiplicity 0..n
   }
   register_system_slots ::xotcl
   proc ::xotcl::register_system_slots {} {}