1 files changed, 2 insertions, 2 deletions
diff --git a/src/wallet/wallet2_api.h b/src/wallet/wallet2_api.h
index d38fd6708..7841c299d 100644
--- a/src/wallet/wallet2_api.h
+++ b/src/wallet/wallet2_api.h
@@ -106,8 +106,8 @@ struct TransactionHistory
 struct WalletListener
 {
     virtual ~WalletListener() = 0;
-    virtual void moneySpent(const std::string &txId, uint64_t amount);
-    virtual void moneyReceived(const std::string &txId, uint64_t amount);
+    virtual void moneySpent(const std::string &txId, uint64_t amount) = 0;
+    virtual void moneyReceived(const std::string &txId, uint64_t amount) = 0;
     // TODO: on_skip_transaction;
 };