diff --git a/src/wallet/rpcdump.cpp b/src/wallet/rpcdump.cpp
--- a/src/wallet/rpcdump.cpp
+++ b/src/wallet/rpcdump.cpp
@@ -673,8 +673,8 @@
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                "Cannot open wallet dump file");
         }
-        Optional<int> tip_height = locked_chain->getHeight();
-        nTimeBegin = tip_height ? locked_chain->getBlockTime(*tip_height) : 0;
+        CHECK_NONFATAL(pwallet->chain().findBlock(
+            pwallet->GetLastBlockHash(), FoundBlock().time(nTimeBegin)));
 
         int64_t nFilesize = std::max<int64_t>(1, file.tellg());
         file.seekg(0, file.beg);
@@ -944,16 +944,13 @@
     // produce output
     file << strprintf("# Wallet dump created by Bitcoin %s\n", CLIENT_BUILD);
     file << strprintf("# * Created on %s\n", FormatISO8601DateTime(GetTime()));
-    const Optional<int> tip_height = locked_chain->getHeight();
     file << strprintf("# * Best block at time of backup was %i (%s),\n",
-                      tip_height.value_or(-1),
-                      tip_height
-                          ? locked_chain->getBlockHash(*tip_height).ToString()
-                          : "(missing block hash)");
-    file << strprintf("#   mined on %s\n",
-                      tip_height ? FormatISO8601DateTime(
-                                       locked_chain->getBlockTime(*tip_height))
-                                 : "(missing block time)");
+                      pwallet->GetLastBlockHeight(),
+                      pwallet->GetLastBlockHash().ToString());
+    int64_t block_time = 0;
+    CHECK_NONFATAL(pwallet->chain().findBlock(pwallet->GetLastBlockHash(),
+                                              FoundBlock().time(block_time)));
+    file << strprintf("#   mined on %s\n", FormatISO8601DateTime(block_time));
     file << "\n";
 
     // add the base58check encoded extended master if the wallet uses HD
diff --git a/src/wallet/test/wallet_tests.cpp b/src/wallet/test/wallet_tests.cpp
--- a/src/wallet/test/wallet_tests.cpp
+++ b/src/wallet/test/wallet_tests.cpp
@@ -257,6 +257,8 @@
         request.params.setArray();
         request.params.push_back(backup_file);
         AddWallet(wallet);
+        wallet->SetLastBlockProcessed(::ChainActive().Height(),
+                                      ::ChainActive().Tip()->GetBlockHash());
         ::dumpwallet(GetConfig(), request);
         RemoveWallet(wallet);
     }
@@ -267,16 +269,18 @@
         std::shared_ptr<CWallet> wallet =
             std::make_shared<CWallet>(Params(), chain.get(), WalletLocation(),
                                       WalletDatabase::CreateDummy());
+        LOCK(wallet->cs_wallet);
         wallet->SetupLegacyScriptPubKeyMan();
 
         JSONRPCRequest request;
         request.params.setArray();
         request.params.push_back(backup_file);
         AddWallet(wallet);
+        wallet->SetLastBlockProcessed(::ChainActive().Height(),
+                                      ::ChainActive().Tip()->GetBlockHash());
         ::importwallet(GetConfig(), request);
         RemoveWallet(wallet);
 
-        LOCK(wallet->cs_wallet);
         BOOST_CHECK_EQUAL(wallet->mapWallet.size(), 3U);
         BOOST_CHECK_EQUAL(m_coinbase_txns.size(), 103U);
         for (size_t i = 0; i < m_coinbase_txns.size(); ++i) {