# Executable name transformed in usage output? **URL:** \ **Category:** ArgumentParser\ **Created:** [May 19, 2023, 9:45pm UTC](https://forums.swift.org/t/executable-name-transformed-in-usage-output/65095 "2023-05-19T21:45:14Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![dabrahams](https://sea2.discourse-cdn.com/swift/user_avatar/forums.swift.org/dabrahams/32/9815_2.png) [@dabrahams](https://forums.swift.org/u/dabrahams)\ **Post date:** [May 19, 2023, 9:45pm UTC](https://forums.swift.org/t/executable-name-transformed-in-usage-output/65095/1 "2023-05-19T21:45:14Z")
I have a build tool plugin in my project that uses ArgumentParser. When I look at its invocation, I'm seeing this: > ' /Users/dave/src/val/.build/arm64-apple-macosx/debug/GenerateValFileTests -o /Users/dave/src/val/.build/plugins/outputs/val/EndToEndTests/TestGeneratorPlugin/ValFileTests.swift -n EndToEndTests /Users/dave/src/val/Tests/EndToEndTests/TestCases/Destroy.val /Users/dave/src/val/Tests/EndToEndTests/TestCases/Monomorphize.val /Users/dave/src/val/Tests/EndToEndTests/TestCases/Factorial.val /Users/dave/src/val/Tests/EndToEndTests/TestCases/Pragma.val /Users/dave/src/val/Tests/EndToEndTests/TestCases/Lambda.val /Users/dave/src/val/Tests/EndToEndTests/TestCases/Subscript.val /Users/dave/src/val/Tests/EndToEndTests/TestCases/LocalInout.val /Users/dave/src/val/Tests/EndToEndTests/TestCases/Existential.val > USAGE: generate-val-file-tests [...] -o -n I understand why the usage is incorrect, but where could this name `generate-val-file-tests` be coming from? That string doesn't exist in my project. ---
**Author:** ![dabrahams](https://sea2.discourse-cdn.com/swift/user_avatar/forums.swift.org/dabrahams/32/9815_2.png) [@dabrahams](https://forums.swift.org/u/dabrahams)\ **Post date:** [May 20, 2023, 12:24am UTC](https://forums.swift.org/t/executable-name-transformed-in-usage-output/65095/2 "2023-05-20T00:24:34Z")
[bug](https://github.com/apple/swift-argument-parser/issues/570), I guess.