diff --git a/cmd/tree/tree.go b/cmd/tree/tree.go
index d199e2c01..1c69a6d0e 100644
--- a/cmd/tree/tree.go
+++ b/cmd/tree/tree.go
@@ -61,7 +61,7 @@ func init() {
 	flags.BoolVarP(cmdFlags, &opts.DirSort, "dirsfirst", "", false, "List directories before files (-U disables).")
 	flags.StringVarP(cmdFlags, &sort, "sort", "", "", "Select sort: name,version,size,mtime,ctime.")
 	// Graphics
-	flags.BoolVarP(cmdFlags, &opts.NoIndent, "noindent", "i", false, "Don't print indentation lines.")
+	flags.BoolVarP(cmdFlags, &opts.NoIndent, "noindent", "", false, "Don't print indentation lines.")
 	flags.BoolVarP(cmdFlags, &opts.Colorize, "color", "C", false, "Turn colorization on always.")
 }