1 files changed, 1 insertions, 1 deletions
diff --git a/merkle.go b/merkle.go
index 6d126f7..9eaf521 100644
--- a/merkle.go
+++ b/merkle.go
@@ -124,7 +124,7 @@ type PostMerkle struct {
 }
 
 func NewPostMerkle(height int64, fname string) *PostMerkle {
-	file, err := os.Create(fname)
+	file, err := os.OpenFile(fname, os.O_RDWR|os.O_CREATE, 0666)
 	if err != nil {
 		panic(err)
 	}