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-rw-r--r--src/cryptonote_core/blockchain.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index dab1a0a96..8ed0e526a 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -1738,7 +1738,8 @@ bool Blockchain::handle_alternative_block(const block& b, const crypto::hash& id
const uint64_t prev_height = alt_chain.size() ? prev_data.height : m_db->get_block_height(b.prev_id);
bei.height = prev_height + 1;
uint64_t block_reward = get_outs_money_amount(b.miner_tx);
- bei.already_generated_coins = block_reward + (alt_chain.size() ? prev_data.already_generated_coins : m_db->get_block_already_generated_coins(prev_height));
+ const uint64_t prev_generated_coins = alt_chain.size() ? prev_data.already_generated_coins : m_db->get_block_already_generated_coins(prev_height);
+ bei.already_generated_coins = (block_reward < (MONEY_SUPPLY - prev_generated_coins)) ? prev_generated_coins + block_reward : MONEY_SUPPLY;
// verify that the block's timestamp is within the acceptable range
// (not earlier than the median of the last X blocks)