diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index dd4d3e97a..0a1cb858e 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -71,7 +71,7 @@ public:
         consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
         consensus.CSVHeight = 419328; // 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5
         consensus.SegwitHeight = 481824; // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893
-        consensus.MinBIP9WarningHeight = consensus.SegwitHeight + consensus.nMinerConfirmationWindow;
+        consensus.MinBIP9WarningHeight = 483840; // segwit activation height + miner confirmation window
         consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
         consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
         consensus.nPowTargetSpacing = 10 * 60;
@@ -178,7 +178,7 @@ public:
         consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
         consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
         consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
-        consensus.MinBIP9WarningHeight = consensus.SegwitHeight + consensus.nMinerConfirmationWindow;
+        consensus.MinBIP9WarningHeight = 836640; // segwit activation height + miner confirmation window
         consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
         consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
         consensus.nPowTargetSpacing = 10 * 60;