diff --git a/cmd/oras/blob/push.go b/cmd/oras/blob/push.go
index ef6353488..f0f9537d4 100644
--- a/cmd/oras/blob/push.go
+++ b/cmd/oras/blob/push.go
@@ -89,7 +89,7 @@ Example - Push blob without TLS:
 	}
 
 	cmd.Flags().Int64VarP(&opts.size, "size", "", -1, "provide the blob size")
-	cmd.Flags().StringVarP(&opts.mediaType, "media-type", "", ocispec.MediaTypeImageLayer, "specify the returned media type in the descriptor if `--descriptor` is used")
+	cmd.Flags().StringVarP(&opts.mediaType, "media-type", "", ocispec.MediaTypeImageLayer, "specify the returned media type in the descriptor if --descriptor is used")
 	option.ApplyFlags(&opts, cmd.Flags())
 	return cmd
 }