diff --git a/tests/core_tests/chaingen.cpp b/tests/core_tests/chaingen.cpp
index 8f413c09..4fdd0a60 100644
--- a/tests/core_tests/chaingen.cpp
+++ b/tests/core_tests/chaingen.cpp
@@ -215,13 +215,14 @@ bool test_generator::construct_block_manually(block& blk, const block& prev_bloc
                                               const crypto::hash& prev_id/* = crypto::hash()*/, const difficulty_type& diffic/* = 1*/,
                                               const transaction& miner_tx/* = transaction()*/,
                                               const std::vector<crypto::hash>& tx_hashes/* = std::vector<crypto::hash>()*/,
-                                              size_t txs_sizes/* = 0*/)
+                                              size_t txs_sizes/* = 0*/, size_t max_outs/* = 0*/)
 {
   blk.major_version = actual_params & bf_major_ver ? major_ver : CURRENT_BLOCK_MAJOR_VERSION;
   blk.minor_version = actual_params & bf_minor_ver ? minor_ver : CURRENT_BLOCK_MINOR_VERSION;
   blk.timestamp     = actual_params & bf_timestamp ? timestamp : prev_block.timestamp + DIFFICULTY_BLOCKS_ESTIMATE_TIMESPAN; // Keep difficulty unchanged
   blk.prev_id       = actual_params & bf_prev_id   ? prev_id   : get_block_hash(prev_block);
   blk.tx_hashes     = actual_params & bf_tx_hashes ? tx_hashes : std::vector<crypto::hash>();
+  max_outs          = actual_params & bf_max_outs ? max_outs : 1;
 
   size_t height = get_block_height(prev_block) + 1;
   uint64_t already_generated_coins = get_already_generated_coins(prev_block);
@@ -235,7 +236,7 @@ bool test_generator::construct_block_manually(block& blk, const block& prev_bloc
   {
     size_t current_block_size = txs_sizes + get_object_blobsize(blk.miner_tx);
     // TODO: This will work, until size of constructed block is less then CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE
-    if (!construct_miner_tx(height, misc_utils::median(block_sizes), already_generated_coins, current_block_size, 0, miner_acc.get_keys().m_account_address, blk.miner_tx, blobdata(), 1))
+    if (!construct_miner_tx(height, misc_utils::median(block_sizes), already_generated_coins, current_block_size, 0, miner_acc.get_keys().m_account_address, blk.miner_tx, blobdata(), max_outs))
       return false;
   }
 
diff --git a/tests/core_tests/chaingen.h b/tests/core_tests/chaingen.h
index fa12601a..a5e93390 100644
--- a/tests/core_tests/chaingen.h
+++ b/tests/core_tests/chaingen.h
@@ -220,7 +220,8 @@ public:
     bf_prev_id   = 1 << 3,
     bf_miner_tx  = 1 << 4,
     bf_tx_hashes = 1 << 5,
-    bf_diffic    = 1 << 6
+    bf_diffic    = 1 << 6,
+    bf_max_outs  = 1 << 7
   };
 
   void get_block_chain(std::vector<block_info>& blockchain, const crypto::hash& head, size_t n) const;
@@ -240,7 +241,7 @@ public:
     const cryptonote::account_base& miner_acc, int actual_params = bf_none, uint8_t major_ver = 0,
     uint8_t minor_ver = 0, uint64_t timestamp = 0, const crypto::hash& prev_id = crypto::hash(),
     const cryptonote::difficulty_type& diffic = 1, const cryptonote::transaction& miner_tx = cryptonote::transaction(),
-    const std::vector<crypto::hash>& tx_hashes = std::vector<crypto::hash>(), size_t txs_sizes = 0);
+    const std::vector<crypto::hash>& tx_hashes = std::vector<crypto::hash>(), size_t txs_sizes = 0, size_t max_outs = 0);
   bool construct_block_manually_tx(cryptonote::block& blk, const cryptonote::block& prev_block,
     const cryptonote::account_base& miner_acc, const std::vector<crypto::hash>& tx_hashes, size_t txs_size);