diff --git a/contrib/devtools/check-doc.py b/contrib/devtools/check-doc.py
index 0a8491e2830..183c3d624eb 100755
--- a/contrib/devtools/check-doc.py
+++ b/contrib/devtools/check-doc.py
@@ -23,7 +23,7 @@
 # list unsupported, deprecated and duplicate args as they need no documentation
 SET_DOC_OPTIONAL = set(['-rpcssl', '-benchmark', '-h', '-help', '-socks', '-tor', '-debugnet', '-whitelistalwaysrelay', '-prematurewitness', '-walletprematurewitness', '-promiscuousmempoolflags', '-blockminsize'])
 
-SET_DOC_OPTIONAL.update(['-con_fpowallowmindifficultyblocks', '-con_fpownoretargeting', '-con_nsubsidyhalvinginterval', '-con_bip34height', '-con_bip65height', '-con_bip66height', '-con_npowtargettimespan', '-con_npowtargetspacing', '-con_nrulechangeactivationthreshold', '-con_nminerconfirmationwindow', '-con_powlimit', '-con_bip34hash', '-con_nminimumchainwork', '-con_defaultassumevalid', '-ndefaultport', '-npruneafterheight', '-fdefaultconsistencychecks', '-frequirestandard', '-fmineblocksondemand', '-mainchainrpccookiefile', '-testnet', '-ct_bits', '-ct_exponent', '-anyonecanspendaremine'])
+SET_DOC_OPTIONAL.update(['-con_fpowallowmindifficultyblocks', '-con_fpownoretargeting', '-con_nsubsidyhalvinginterval', '-con_bip34height', '-con_bip65height', '-con_bip66height', '-con_npowtargettimespan', '-con_npowtargetspacing', '-con_nrulechangeactivationthreshold', '-con_nminerconfirmationwindow', '-con_powlimit', '-con_nminimumchainwork', '-con_defaultassumevalid', '-ndefaultport', '-npruneafterheight', '-fdefaultconsistencychecks', '-frequirestandard', '-fmineblocksondemand', '-mainchainrpccookiefile', '-testnet', '-ct_bits', '-ct_exponent', '-anyonecanspendaremine'])
 
 def main():
   used = check_output(CMD_GREP_ARGS, shell=True)
diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index eaa4243f057..54b7f0221ac 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -91,7 +91,6 @@ class CElementsParams : public CChainParams {
         strNetworkID = CHAINPARAMS_ELEMENTS;
         consensus.nSubsidyHalvingInterval = 210000;
         consensus.BIP34Height = 227931;
-        consensus.BIP34Hash = uint256S("0x000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8");
         consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
         consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
         consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
@@ -217,7 +216,6 @@ class CRegTestParams : public CChainParams {
         strNetworkID = CHAINPARAMS_REGTEST;
         consensus.nSubsidyHalvingInterval = 150;
         consensus.BIP34Height = 100000000; // BIP34 has not activated on regtest (far in the future so block v1 are not rejected in tests)
-        consensus.BIP34Hash = uint256();
         consensus.BIP65Height = 1351; // BIP65 activated on regtest (Used in rpc activation tests)
         consensus.BIP66Height = 1251; // BIP66 activated on regtest (Used in rpc activation tests)
         consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
@@ -316,7 +314,6 @@ class CCustomParams : public CChainParams {
         consensus.nRuleChangeActivationThreshold = GetArg("-con_nrulechangeactivationthreshold", 108); // 75% for testchains
         consensus.nMinerConfirmationWindow = GetArg("-con_nminerconfirmationwindow", 144); // Faster than normal for custom (144 instead of 2016)
         consensus.powLimit = uint256S(GetArg("-con_powlimit", "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"));
-        consensus.BIP34Hash = uint256S(GetArg("-con_bip34hash", "0x0"));
         consensus.nMinimumChainWork = uint256S(GetArg("-con_nminimumchainwork", "0x0"));
         // By default assume that the signatures in ancestors of this block are valid.
         consensus.defaultAssumeValid = uint256S(GetArg("-con_defaultassumevalid", "0x00"));
diff --git a/src/consensus/params.h b/src/consensus/params.h
index 9fed70b535b..5f9fbebf7ea 100644
--- a/src/consensus/params.h
+++ b/src/consensus/params.h
@@ -41,9 +41,8 @@ struct BIP9Deployment {
 struct Params {
     uint256 hashGenesisBlock;
     int nSubsidyHalvingInterval;
-    /** Block height and hash at which BIP34 becomes active */
+    /** Block height at which BIP34 becomes active */
     int BIP34Height;
-    uint256 BIP34Hash;
     /** Block height at which BIP65 becomes active */
     int BIP65Height;
     /** Block height at which BIP66 becomes active */
diff --git a/src/validation.cpp b/src/validation.cpp
index 207517a7203..cee669b6e73 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -2587,10 +2587,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
     // time BIP34 activated, in each of the existing pairs the duplicate coinbase had overwritten the first
     // before the first had been spent.  Since those coinbases are sufficiently buried its no longer possible to create further
     // duplicate transactions descending from the known pairs either.
-    // If we're on the known chain at height greater than where BIP34 activated, we can save the db accesses needed for the BIP30 check.
-    CBlockIndex *pindexBIP34height = pindex->pprev->GetAncestor(chainparams.GetConsensus().BIP34Height);
-    //Only continue to enforce if we're below BIP34 activation height or the block hash at that height doesn't correspond.
-    fEnforceBIP30 = fEnforceBIP30 && (!pindexBIP34height || !(pindexBIP34height->GetBlockHash() == chainparams.GetConsensus().BIP34Hash));
+    fEnforceBIP30 = fEnforceBIP30 && pindex->nHeight > chainparams.GetConsensus().BIP34Height;
 
     if (fEnforceBIP30) {
         for (const auto& tx : block.vtx) {