diff --git a/src/consensus/validation.h b/src/consensus/validation.h
index 36142e1e4..163b17e62 100644
--- a/src/consensus/validation.h
+++ b/src/consensus/validation.h
@@ -71,13 +71,6 @@ public:
     bool IsError() const {
         return mode == MODE_ERROR;
     }
-    bool IsInvalid(int &nDoSOut) const {
-        if (IsInvalid()) {
-            nDoSOut = nDoS;
-            return true;
-        }
-        return false;
-    }
     bool CorruptionPossible() const {
         return corruptionPossible;
     }
diff --git a/src/test/txvalidation_tests.cpp b/src/test/txvalidation_tests.cpp
index c2777cd6d..4876c44f1 100644
--- a/src/test/txvalidation_tests.cpp
+++ b/src/test/txvalidation_tests.cpp
@@ -52,10 +52,6 @@ BOOST_FIXTURE_TEST_CASE(tx_mempool_reject_coinbase, TestChain100Setup)
     // Check that the validation state reflects the unsuccessful attempt.
     BOOST_CHECK(state.IsInvalid());
     BOOST_CHECK_EQUAL(state.GetRejectReason(), "coinbase");
-
-    int nDoS;
-    BOOST_CHECK_EQUAL(state.IsInvalid(nDoS), true);
-    BOOST_CHECK_EQUAL(nDoS, 100);
 }
 
 BOOST_AUTO_TEST_SUITE_END()