diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index e2ec4b7b9..bda20efa6 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -383,7 +383,7 @@ class CMainParams : public CChainParams
         //convertSeed6(vFixedSeeds, pnSeed6_main, ARRAYLEN(pnSeed6_main)); // added
 
         base58Prefixes[PUBKEY_ADDRESS_BIR]  = std::vector<unsigned char>(1, 45);
-        base58Prefixes[SECRET_KEY_BIR]      = std::vector<unsigned char>(1, 139);
+        base58Prefixes[SECRET_KEY_BIR]      = std::vector<unsigned char>(1, 179);
     }
 
     const Checkpoints::CCheckpointData& Checkpoints() const