diff --git a/domain/miningmanager/mempool/orphan_pool.go b/domain/miningmanager/mempool/orphan_pool.go
index 61a71607f..59767d501 100644
--- a/domain/miningmanager/mempool/orphan_pool.go
+++ b/domain/miningmanager/mempool/orphan_pool.go
@@ -340,7 +340,7 @@ func (op *orphansPool) getOrphanTransactionsByAddresses() (
 	sending model.ScriptPublicKeyStringToDomainTransaction,
 	receiving model.ScriptPublicKeyStringToDomainTransaction,
 	err error) {
-	sending = make(model.ScriptPublicKeyStringToDomainTransaction, op.orphanTransactionCount())
+	sending = make(model.ScriptPublicKeyStringToDomainTransaction)
 	receiving = make(model.ScriptPublicKeyStringToDomainTransaction, op.orphanTransactionCount())
 	var transaction *externalapi.DomainTransaction
 	for _, mempoolTransaction := range op.allOrphans {