Index: library/serialize/serializer.tcl
===================================================================
diff -u -N -rc4f449cb353be812ba6502ef8e9587e87881f59b -rb35a18bdce51c4c981d14c59288cfc4d0cd450bc
--- library/serialize/serializer.tcl	(.../serializer.tcl)	(revision c4f449cb353be812ba6502ef8e9587e87881f59b)
+++ library/serialize/serializer.tcl	(.../serializer.tcl)	(revision b35a18bdce51c4c981d14c59288cfc4d0cd450bc)
@@ -887,7 +887,7 @@
       if {$serializeSlot} {
         # Slots need to be explicitly initialized to ensure
         # __invalidateobjectparameter to be called
-	lappend evalList :init
+	lappend evalList ": init"
       }
 
       set objectName [::nsf::directdispatch $o -frame method ::nsf::current object]