Index: generic/nsf.tcl
===================================================================
diff -u -rf2c0f8e055015e58f3fa7bd338c872a2b7d76113 -r8c7cda91db207490f2d401595cec6cf784460bb6
--- generic/nsf.tcl	(.../nsf.tcl)	(revision f2c0f8e055015e58f3fa7bd338c872a2b7d76113)
+++ generic/nsf.tcl	(.../nsf.tcl)	(revision 8c7cda91db207490f2d401595cec6cf784460bb6)
@@ -50,7 +50,7 @@
       set rel "object-mixin"
       set args [lrange $args 1 end]
     } else {
-      set rel "mixin"
+      set rel "class-mixin"
     }
     set oldSetting [::nsf::relation $object $rel]
     # use uplevel to avoid namespace surprises