diff --git a/light/lightchain.go b/light/lightchain.go
index 773c0f38b..839cf99b9 100644
--- a/light/lightchain.go
+++ b/light/lightchain.go
@@ -102,31 +102,10 @@ func NewLightChain(odr OdrBackend, config *params.ChainConfig, pow pow.PoW, mux
 		log.Warn("Wrote default ethereum genesis block")
 	}
 
-	if bc.genesisBlock.Hash() == (common.Hash{212, 229, 103, 64, 248, 118, 174, 248, 192, 16, 184, 106, 64, 213, 245, 103, 69, 161, 24, 208, 144, 106, 52, 230, 154, 236, 140, 13, 177, 203, 143, 163}) {
+	if bc.genesisBlock.Hash() == params.MainNetGenesisHash {
 		// add trusted CHT
-		if config.DAOForkSupport {
-			WriteTrustedCht(bc.chainDb, TrustedCht{
-				Number: 637,
-				Root:   common.HexToHash("01e408d9b1942f05dba1a879f3eaafe34d219edaeb8223fecf1244cc023d3e23"),
-			})
-		} else {
-			WriteTrustedCht(bc.chainDb, TrustedCht{
-				Number: 523,
-				Root:   common.HexToHash("c035076523faf514038f619715de404a65398c51899b5dccca9c05b00bc79315"),
-			})
-		}
+		WriteTrustedCht(bc.chainDb, TrustedCht{Number: 805, Root: common.HexToHash("85e4286fe0a730390245c49de8476977afdae0eb5530b277f62a52b12313d50f")})
 		log.Info("Added trusted CHT for mainnet")
-	} else {
-		if bc.genesisBlock.Hash() == (common.Hash{12, 215, 134, 162, 66, 93, 22, 241, 82, 198, 88, 49, 108, 66, 62, 108, 225, 24, 30, 21, 195, 41, 88, 38, 215, 201, 144, 76, 186, 156, 227, 3}) {
-			// add trusted CHT for testnet
-			WriteTrustedCht(bc.chainDb, TrustedCht{
-				Number: 452,
-				Root:   common.HexToHash("511da2c88e32b14cf4a4e62f7fcbb297139faebc260a4ab5eb43cce6edcba324"),
-			})
-			log.Info("Added trusted CHT for testnet")
-		} else {
-			DeleteTrustedCht(bc.chainDb)
-		}
 	}
 
 	if err := bc.loadLastState(); err != nil {