Index: generic/predefined.h
===================================================================
diff -u -r901ceb8f58714e31d28ed3277923fc69c085d252 -r464811a4aaa475de10e834b0a009521446163fc0
--- generic/predefined.h	(.../predefined.h)	(revision 901ceb8f58714e31d28ed3277923fc69c085d252)
+++ generic/predefined.h	(.../predefined.h)	(revision 464811a4aaa475de10e834b0a009521446163fc0)
@@ -438,8 +438,8 @@
 "::xotcl::Attribute createFromParameterSyntax [self] {*}$arg}\n"
 "::xotcl::setinstvar [::xotcl::self]::slot __parameter $arglist}\n"
 "proc createBootstrapAttributeSlots {} {}\n"
-"::xotcl::Slot method type=mixin {name value arg} {\n"
-"if {![::xotcl::is $value mixin $arg]} {\n"
+"::xotcl::Slot method type=hasmixin {name value arg} {\n"
+"if {![::xotcl::is $value hasmixin $arg]} {\n"
 "error \"Value '$value' of $name has not mixin $arg\"}\n"
 "return $value}\n"
 "::xotcl::Slot method type=baseclass {name value} {\n"