diff --git a/cmd/oras/internal/option/platform.go b/cmd/oras/internal/option/platform.go
index 3a10b76c7..b44f0a1d9 100644
--- a/cmd/oras/internal/option/platform.go
+++ b/cmd/oras/internal/option/platform.go
@@ -81,10 +81,8 @@ type ArtifactPlatform struct {
 
 // ApplyFlags applies flags to a command flag set.
 func (opts *ArtifactPlatform) ApplyFlags(fs *pflag.FlagSet) {
-	if opts.FlagDescription == "" {
-		opts.FlagDescription = "artifact platform"
-	}
-	fs.StringVarP(&opts.platform, "artifact-platform", "", "", opts.FlagDescription+" in the form of `os[/arch][/variant][:os_version]`")
+	opts.FlagDescription = "set artifact platform"
+	opts.Platform.AppFlags(fs)
 }
 
 // Parse parses the input platform flag to an oci platform type.