diff --git a/pkg/cmd/run/download/download.go b/pkg/cmd/run/download/download.go
index 18a10df80..99ec45bbe 100644
--- a/pkg/cmd/run/download/download.go
+++ b/pkg/cmd/run/download/download.go
@@ -42,13 +42,17 @@ func NewCmdDownload(f *cmdutil.Factory, runF func(*DownloadOptions) error) *cobr
 	cmd := &cobra.Command{
 		Use:   "download [<run-id>]",
 		Short: "Download artifacts generated by a workflow run",
-		Long: heredoc.Doc(`
+		Long: heredoc.Docf(`
 			Download artifacts generated by a GitHub Actions workflow run.
 
 			The contents of each artifact will be extracted under separate directories based on
 			the artifact name. If only a single artifact is specified, it will be extracted into
 			the current directory.
-		`),
+
+			By default, this command downloads the latest artifact created and uploaded through
+			GitHub Actions. Because workflows can delete or overwrite artifacts, %[1]s<run-id>%[1]s
+			must be used to select an artifact from a specific workflow run.
+		`, "`"),
 		Args: cobra.MaximumNArgs(1),
 		Example: heredoc.Doc(`
 			# Download all artifacts generated by a workflow run