diff --git a/src/mining/merkle_tree.go b/src/mining/merkle_tree.go
index b1ac10a..90dd75d 100644
--- a/src/mining/merkle_tree.go
+++ b/src/mining/merkle_tree.go
@@ -90,7 +90,7 @@ func generateMerkleRoot(txids [][32]byte) [32]byte {
     level := make([][32]byte, 0)
 
     for _,t := range txids {
-        level = append(level, t)
+        level = append(level, [32]byte(utils.ReverseBytes(t[:])))
     }
 
     for len(level)>1 {