diff --git a/sgminer.c b/sgminer.c
index acecfe1f..5d6785fa 100644
--- a/sgminer.c
+++ b/sgminer.c
@@ -2019,9 +2019,13 @@ static unsigned char *__gbt_merkleroot(struct pool *pool)
       memcpy(&merkle_hash[txns * 32], &merkle_hash[(txns - 1) * 32], 32);
       txns++;
     }
-    for (i = 0; i < txns; i += 2){
+    for (i = 0; i < txns; i += 2)
+	{
       unsigned char hashout[32];
 
+	  if (pool->algorithm.type == ALGO_GOSTCOIN) // TODO: delete after hard fork1
+	  	memcpy (merkle_hash + (i+1)*32, merkle_hash + i*32, 32);
+
       pool->algorithm.gen_hash(merkle_hash + (i * 32), 64, hashout);
       memcpy(merkle_hash + (i / 2 * 32), hashout, 32);
     }
@@ -6152,7 +6156,7 @@ static void gen_stratum_work(struct pool *pool, struct work *work)
     memcpy(merkle_sha, merkle_root, 32);
     for (i = 0; i < pool->swork.merkles; i++) 
 	{
-	  if (pool->algorithm.type != ALGO_GOSTCOIN) // TODO: remove after hard fork 1	
+	  if (pool->algorithm.type == ALGO_GOSTCOIN) // TODO: remove after hard fork 1	
 		memcpy(merkle_sha + 32, merkle_sha, 32); 	
 	  else		
       	memcpy(merkle_sha + 32, pool->swork.merkle_bin[i], 32);