diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp
index a9b952e5a..aa9174c86 100644
--- a/src/bitcoind.cpp
+++ b/src/bitcoind.cpp
@@ -104,6 +104,11 @@ static bool AppInit(int argc, char* argv[])
         }
         // Check for -testnet or -regtest parameter (Params() calls are only valid after this clause)
         try {
+            std::string strChainName = gArgs.GetChainName();
+            if (strChainName == CBaseChainParams::MAIN) {
+                fprintf(stderr, "Please use -testnet or -regtest for now; mainnet is not yet ready.\n");
+                return false;
+            }
             SelectParams(gArgs.GetChainName());
         } catch (const std::exception& e) {
             fprintf(stderr, "Error: %s\n", e.what());
diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index 45e8114bd..6cd35e3f2 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -141,10 +141,8 @@ public:
         uint256 nNonce = uint256S("000000000000000000000000000000000000000000000000000000000000021d");
         genesis = CreateGenesisBlock(1478403829, nNonce, 0x1f07ffff, 4, 0, GenesisSolutions::MAINNET);
         consensus.hashGenesisBlock = genesis.GetHash();
-        //assert(genesis.hashMerkleRoot == uint256S("0x19612bcf00ea7611d315d7f43554fa983c6e8c30cba17e52c679e0e80abf7d42"));
-        //assert(consensus.hashGenesisBlock == uint256S("0x0007104ccda289427919efc39dc9e4d499804b7bebc22df55f8b834301260602"));
-
-        assert(false); // Mainnet is not yet ready for production!
+        assert(genesis.hashMerkleRoot == uint256S("0x19612bcf00ea7611d315d7f43554fa983c6e8c30cba17e52c679e0e80abf7d42"));
+        assert(consensus.hashGenesisBlock == uint256S("0x0007104ccda289427919efc39dc9e4d499804b7bebc22df55f8b834301260602"));
 
         // vSeeds.emplace_back("dnsseed.btcprivate.org");