diff --git a/src/test/work_comparator_tests.cpp b/src/test/work_comparator_tests.cpp
index 1b9dcf083..90eb3f144 100644
--- a/src/test/work_comparator_tests.cpp
+++ b/src/test/work_comparator_tests.cpp
@@ -1,58 +1,58 @@
 // Copyright (c) 2018 The Bitcoin developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <blockindexworkcomparator.h>
 
 #include <boost/test/unit_test.hpp>
 
 BOOST_AUTO_TEST_SUITE(work_comparator_tests)
 
 BOOST_AUTO_TEST_CASE(work_comparator) {
     CBlockIndex indexA, indexB;
 
     // Differing chain work
     indexA.nChainWork = 0;
     indexB.nChainWork = 1;
     for (int sequenceIdA = 1; sequenceIdA < 1024; sequenceIdA *= 2) {
         for (int sequenceIdB = 1; sequenceIdB < 1024; sequenceIdB *= 2) {
             // Differing sequenceId doesn't affect chain work
             indexA.nSequenceId = sequenceIdA;
             indexB.nSequenceId = sequenceIdB;
             BOOST_CHECK(CBlockIndexWorkComparator()(&indexA, &indexB));
         }
     }
 
     // Same chain work, but differing sequenceId
     indexA = CBlockIndex();
     indexB = CBlockIndex();
     for (int sequenceIdA = 1; sequenceIdA < 1024; sequenceIdA *= 2) {
         for (int sequenceIdB = 1; sequenceIdB < 1024; sequenceIdB *= 2) {
             if (sequenceIdA == sequenceIdB) {
                 continue;
             }
 
             indexA.nSequenceId = sequenceIdA;
             indexB.nSequenceId = sequenceIdB;
             if (sequenceIdA > sequenceIdB) {
                 BOOST_CHECK(CBlockIndexWorkComparator()(&indexA, &indexB));
             } else {
                 BOOST_CHECK(CBlockIndexWorkComparator()(&indexB, &indexA));
             }
         }
     }
 
     // All else equal, so checking pointer address as final check
-    CBlockIndex *pindexA = new CBlockIndex();
-    CBlockIndex *pindexB = new CBlockIndex();
+    std::unique_ptr<CBlockIndex> pindexA(new CBlockIndex());
+    std::unique_ptr<CBlockIndex> pindexB(new CBlockIndex());
     if (pindexA < pindexB) {
-        BOOST_CHECK(CBlockIndexWorkComparator()(pindexB, pindexA));
+        BOOST_CHECK(CBlockIndexWorkComparator()(pindexB.get(), pindexA.get()));
     } else {
-        BOOST_CHECK(CBlockIndexWorkComparator()(pindexA, pindexB));
+        BOOST_CHECK(CBlockIndexWorkComparator()(pindexA.get(), pindexB.get()));
     }
 
     // Same block should return false
-    BOOST_CHECK(!CBlockIndexWorkComparator()(pindexA, pindexA));
+    BOOST_CHECK(!CBlockIndexWorkComparator()(pindexA.get(), pindexA.get()));
 }
 
 BOOST_AUTO_TEST_SUITE_END()