                 compiled-generic-crossref
                 compiler-impl
                 compiler.errors:compiler-errors
-                definition-observers
+                ! definition-observers
                 interactive-vocabs
                 lexer-factory
                 print-use-hook

    ] when
    strip-dictionary? [
        {
            "compiler.units"
            "vocabs"
            "vocabs.cache"
            "source-files.errors"

            strip-debugger? [
                "debugger" require
                "inspector" require
                deploy-ui? get [
                    "ui.debugger" require
                ] when
            ] unless
            deploy-vocab set
            deploy-vocab get require
