diff --git a/wallet/core/wallet_db.cpp b/wallet/core/wallet_db.cpp
index 09aee0458..7ab7f1550 100644
--- a/wallet/core/wallet_db.cpp
+++ b/wallet/core/wallet_db.cpp
@@ -7404,6 +7404,11 @@ namespace beam::wallet
         return !(*this == other);
     }
 
+    bool WalletAddress::operator < (const WalletAddress& other) const
+    {
+        return m_BbsAddr < other.m_BbsAddr;//&& m_OwnID < other.m_OwnID;
+    }
+
     bool WalletAddress::isExpired() const
     {
         return getTimestamp() > getExpirationTime();
diff --git a/wallet/core/wallet_db.h b/wallet/core/wallet_db.h
index 58188888c..509cd7147 100644
--- a/wallet/core/wallet_db.h
+++ b/wallet/core/wallet_db.h
@@ -133,6 +133,7 @@ namespace beam::wallet
 
         bool operator == (const WalletAddress& other) const;
         bool operator != (const WalletAddress& other) const;
+        bool operator < (const WalletAddress& other) const;
         bool isExpired() const;
         bool isOwn() const;
         bool isPermanent() const;