diff --git a/eng/README.md b/eng/README.md
index b9982ebc896..d127a437b4e 100644
--- a/eng/README.md
+++ b/eng/README.md
@@ -33,8 +33,10 @@ pwsh eng/run.ps1 build -refresh
   patches) before the command builds the repository. Remove `-refresh` if you've
   made changes in the submodule (`go`) that you want to keep.
 * Add `-test` to run tests after the build completes.
-* Add `-pack` to create an archive file containing the Go build in
+* Add `-packbuild` to create an archive file containing the Go build in
   `eng/artifacts/bin`. (A `.tar.gz` or `.zip` file, depending on GOOS)
+* Add `-packsource` to create a `.tar.gz` file containing the Go sources in
+  `eng/artifacts/bin`.
 
 Run this command for more information:
 
diff --git a/eng/_util/cmd/build/build.go b/eng/_util/cmd/build/build.go
index 7af05339872..03d39428e6a 100644
--- a/eng/_util/cmd/build/build.go
+++ b/eng/_util/cmd/build/build.go
@@ -33,7 +33,7 @@ in 'src' such as 'src/run.bash' instead of this script.
 
 Example: Build Go, run tests, and produce an archive file:
 
-  eng/run.ps1 build -test -pack
+  eng/run.ps1 build -test -packbuild
 `
 
 func main() {