1 files changed, 2 insertions, 1 deletions
diff --git a/main.go b/main.go
index 3bf3f6b..98a5218 100644
--- a/main.go
+++ b/main.go
@@ -11,6 +11,7 @@ func main() {
 	height := flag.Int64("height", 0, "number of nodes is 2 ** height - 1")
 	fname := flag.String("db", "test.db", "filename for the database")
 	mtype := flag.String("mtype", "bfs", "type of Merkle tree (bfs or post)")
+	p := flag.Bool("p", false, "parallel build")
 	prof := flag.String("prof", "prof.prof", "filename for profile information")
 	flag.Parse()
 
@@ -22,7 +23,7 @@ func main() {
 	defer pprof.StopCPUProfile()
 
 	m := NewMerkle(*mtype, *height, *fname)
-	m.Build()
+	m.Build(*p)
 	/*
 		root := make([]byte, hashSize)
 		m.Read(root, 0)