diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index 645b7f0c3..2962ffc12 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -96,7 +96,7 @@ public:
         consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1517356801; // January 31st, 2018
 
         // The best chain should have at least this much work.
-        consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000000000000000008a1d70");
+        consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000000000000000000000ffff");
 
         // By default assume that the signatures in ancestors of this block are valid.
         consensus.defaultAssumeValid = uint256S("0x66f49ad85624c33e4fd61aa45c54012509ed4a53308908dd07f56346c7939273"); //1441280