diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index 81627bb85..f415b01f4 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -73,7 +73,7 @@ static const struct {
   uint8_t version;
   uint64_t height;
   time_t time;
-} hard_forks[] = {
+} mainnet_hard_forks[] = {
   // version 1 from the start of the blockchain
   { 1, 1, 1341378000 },
 
@@ -81,6 +81,15 @@ static const struct {
   { 2, 1009827, 1442763710 },
 };
 
+static const struct {
+  uint8_t version;
+  uint64_t height;
+  time_t time;
+} testnet_hard_forks[] = {
+  // version 1 from the start of the blockchain
+  { 1, 1, 1341378000 },
+};
+
 //------------------------------------------------------------------
 Blockchain::Blockchain(tx_memory_pool& tx_pool) :
 m_db(), m_tx_pool(tx_pool), m_timestamps_and_difficulties_height(0), m_current_block_cumul_sz_limit(0), m_is_in_checkpoint_zone(false), 
@@ -288,8 +297,15 @@ bool Blockchain::init(BlockchainDB* db, const bool testnet)
     m_db = db;
 
     m_hardfork = new HardFork(*db);
-    for (size_t n = 0; n < sizeof(hard_forks) / sizeof(hard_forks[0]); ++n)
-      m_hardfork->add(hard_forks[n].version, hard_forks[n].height, hard_forks[n].time);
+    if (testnet) {
+      for (size_t n = 0; n < sizeof(testnet_hard_forks) / sizeof(testnet_hard_forks[0]); ++n)
+        m_hardfork->add(testnet_hard_forks[n].version, testnet_hard_forks[n].height, testnet_hard_forks[n].time);
+    }
+    else
+    {
+      for (size_t n = 0; n < sizeof(mainnet_hard_forks) / sizeof(mainnet_hard_forks[0]); ++n)
+        m_hardfork->add(mainnet_hard_forks[n].version, mainnet_hard_forks[n].height, mainnet_hard_forks[n].time);
+    }
     m_hardfork->init();
 
     // if the blockchain is new, add the genesis block