1 files changed, 2 insertions, 2 deletions
diff --git a/src/interfaces/chain.h b/src/interfaces/chain.h
index 6e50ccb27a..85d09be0f3 100644
--- a/src/interfaces/chain.h
+++ b/src/interfaces/chain.h
@@ -242,8 +242,8 @@ public:
     {
     public:
         virtual ~Notifications() {}
-        virtual void transactionAddedToMempool(const CTransactionRef& tx) {}
-        virtual void transactionRemovedFromMempool(const CTransactionRef& tx, MemPoolRemovalReason reason) {}
+        virtual void transactionAddedToMempool(const CTransactionRef& tx, uint64_t mempool_sequence) {}
+        virtual void transactionRemovedFromMempool(const CTransactionRef& tx, MemPoolRemovalReason reason, uint64_t mempool_sequence) {}
         virtual void blockConnected(const CBlock& block, int height) {}
         virtual void blockDisconnected(const CBlock& block, int height) {}
         virtual void updatedBlockTip() {}