Index: generic/gentclAPI.decls
===================================================================
diff -u -re8f814e896b7aac8326f9abef3a5e759b2a4ed18 -rdf8c7c2f533ff443d9486b807c8c8a60d9f3b6fd
--- generic/gentclAPI.decls	(.../gentclAPI.decls)	(revision e8f814e896b7aac8326f9abef3a5e759b2a4ed18)
+++ generic/gentclAPI.decls	(.../gentclAPI.decls)	(revision df8c7c2f533ff443d9486b807c8c8a60d9f3b6fd)
@@ -81,7 +81,7 @@
 }
 xotclCmd relation XOTclRelationCmd {
   {-argName "object" -required 1 -type object}
-  {-argName "relationtype" -required 1 -type "mixin|instmixin|object-mixin|class-mixin|filter|instfilter|object-filter|class_filter|class|superclass|rootclass"}
+  {-argName "relationtype" -required 1 -type "mixin|instmixin|object-mixin|class-mixin|filter|instfilter|object-filter|class-filter|class|superclass|rootclass"}
   {-argName "value" -required 0 -type tclobj}
 }
 xotclCmd setinstvar XOTclSetInstvarCmd {
Index: generic/tclAPI.h
===================================================================
diff -u -re8f814e896b7aac8326f9abef3a5e759b2a4ed18 -rdf8c7c2f533ff443d9486b807c8c8a60d9f3b6fd
--- generic/tclAPI.h	(.../tclAPI.h)	(revision e8f814e896b7aac8326f9abef3a5e759b2a4ed18)
+++ generic/tclAPI.h	(.../tclAPI.h)	(revision df8c7c2f533ff443d9486b807c8c8a60d9f3b6fd)
@@ -18,7 +18,7 @@
 enum methodpropertyIdx {methodpropertyProtectedIdx, methodpropertyStaticIdx, methodpropertySlotobjIdx};
   
 static int convertToRelationtype(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclParam CONST *pPtr, ClientData *clientData) {
-  static CONST char *opts[] = {"mixin", "instmixin", "object-mixin", "class-mixin", "filter", "instfilter", "object-filter", "class_filter", "class", "superclass", "rootclass", NULL};
+  static CONST char *opts[] = {"mixin", "instmixin", "object-mixin", "class-mixin", "filter", "instfilter", "object-filter", "class-filter", "class", "superclass", "rootclass", NULL};
   return Tcl_GetIndexFromObj(interp, objPtr, opts, "relationtype", 0, (int *)clientData);
 }
 enum relationtypeIdx {relationtypeMixinIdx, relationtypeInstmixinIdx, relationtypeObject_mixinIdx, relationtypeClass_mixinIdx, relationtypeFilterIdx, relationtypeInstfilterIdx, relationtypeObject_filterIdx, relationtypeClass_filterIdx, relationtypeClassIdx, relationtypeSuperclassIdx, relationtypeRootclassIdx};
@@ -2643,7 +2643,7 @@
 },
 {"::xotcl::relation", XOTclRelationCmdStub, 3, {
   {"object", 1, 0, convertToObject},
-  {"mixin|instmixin|object-mixin|class-mixin|filter|instfilter|object-filter|class_filter|class|superclass|rootclass", 1, 0, convertToRelationtype},
+  {"mixin|instmixin|object-mixin|class-mixin|filter|instfilter|object-filter|class-filter|class|superclass|rootclass", 1, 0, convertToRelationtype},
   {"value", 0, 0, convertToTclobj}}
 },
 {"::xotcl::setinstvar", XOTclSetInstvarCmdStub, 3, {