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-rw-r--r--src/primitives/transaction.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/primitives/transaction.h b/src/primitives/transaction.h
index 77326c64b0..84f7adddd1 100644
--- a/src/primitives/transaction.h
+++ b/src/primitives/transaction.h
@@ -146,10 +146,13 @@ public:
// which has units satoshis-per-kilobyte.
// If you'd pay more than 1/3 in fees
// to spend something, then we consider it dust.
- // A typical txout is 34 bytes big, and will
+ // A typical spendable txout is 34 bytes big, and will
// need a CTxIn of at least 148 bytes to spend:
- // so dust is a txout less than 546 satoshis
+ // so dust is a spendable txout less than 546 satoshis
// with default minRelayTxFee.
+ if (scriptPubKey.IsUnspendable())
+ return 0;
+
size_t nSize = GetSerializeSize(SER_DISK,0)+148u;
return 3*minRelayTxFee.GetFee(nSize);
}