1 files changed, 6 insertions, 6 deletions
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 1e6d37c46..14e2066c9 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -1581,8 +1581,9 @@ static UniValue listsinceblock(const JSONRPCRequest& request)
     uint256 blockId;
     if (!request.params[0].isNull() && !request.params[0].get_str().empty()) {
         blockId = ParseHashV(request.params[0], "blockhash");
-        height = locked_chain->findFork(blockId, &altheight);
-        if (!height) {
+        height.emplace();
+        altheight.emplace();
+        if (!pwallet->chain().findCommonAncestor(blockId, pwallet->GetLastBlockHash(), /* ancestor out */ FoundBlock().height(*height), /* blockId out */ FoundBlock().height(*altheight))) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
         }
     }
@@ -1601,8 +1602,7 @@ static UniValue listsinceblock(const JSONRPCRequest& request)
 
     bool include_removed = (request.params[3].isNull() || request.params[3].get_bool());
 
-    const Optional<int> tip_height = locked_chain->getHeight();
-    int depth = tip_height && height ? (1 + *tip_height - *height) : -1;
+    int depth = height ? pwallet->GetLastBlockHeight() + 1 - *height : -1;
 
     UniValue transactions(UniValue::VARR);
 
@@ -1634,8 +1634,8 @@ static UniValue listsinceblock(const JSONRPCRequest& request)
         --*altheight;
     }
 
-    int last_height = tip_height ? *tip_height + 1 - target_confirms : -1;
-    uint256 lastblock = last_height >= 0 ? locked_chain->getBlockHash(last_height) : uint256();
+    uint256 lastblock;
+    CHECK_NONFATAL(pwallet->chain().findAncestorByHeight(pwallet->GetLastBlockHash(), pwallet->GetLastBlockHeight() + 1 - target_confirms, FoundBlock().hash(lastblock)));
 
     UniValue ret(UniValue::VOBJ);
     ret.pushKV("transactions", transactions);