diff --git a/src/test/hash_tests.cpp b/src/test/hash_tests.cpp
index 2fe44960f46..46901893e9b 100644
--- a/src/test/hash_tests.cpp
+++ b/src/test/hash_tests.cpp
@@ -133,18 +133,20 @@ BOOST_AUTO_TEST_CASE(siphash)
     // Check consistency between CSipHasher and SipHashUint256[Extra].
     FastRandomContext ctx;
     for (int i = 0; i < 16; ++i) {
+        uint64_t k0 = ctx.rand64();
         uint64_t k1 = ctx.rand64();
-        uint64_t k2 = ctx.rand64();
         uint256 x = m_rng.rand256();
+
+        CSipHasher sip256(k0, k1);
+        sip256.Write(x);
+        BOOST_CHECK_EQUAL(SipHashUint256(k0, k1, x), sip256.Finalize()); // TODO modified in follow-up commit
+
+        CSipHasher sip288 = sip256;
         uint32_t n = ctx.rand32();
         uint8_t nb[4];
         WriteLE32(nb, n);
-        CSipHasher sip256(k1, k2);
-        sip256.Write(x);
-        CSipHasher sip288 = sip256;
         sip288.Write(nb);
-        BOOST_CHECK_EQUAL(SipHashUint256(k1, k2, x), sip256.Finalize());
-        BOOST_CHECK_EQUAL(SipHashUint256Extra(k1, k2, x, n), sip288.Finalize());
+        BOOST_CHECK_EQUAL(SipHashUint256Extra(k0, k1, x, n), sip288.Finalize()); // TODO modified in follow-up commit
     }
 }