diff --git a/cmd/puppeth/genesis.go b/cmd/puppeth/genesis.go
index 9cddd8dbc7..dee66dbddc 100644
--- a/cmd/puppeth/genesis.go
+++ b/cmd/puppeth/genesis.go
@@ -239,6 +239,7 @@ type parityChainSpec struct {
 		MaxCodeSizeTransition    hexutil.Uint64       `json:"maxCodeSizeTransition"`
 		EIP98Transition          hexutil.Uint64       `json:"eip98Transition"`
 		EIP150Transition         hexutil.Uint64       `json:"eip150Transition"`
+		EIP152Transition         hexutil.Uint64       `json:"eip152Transition"`
 		EIP160Transition         hexutil.Uint64       `json:"eip160Transition"`
 		EIP161abcTransition      hexutil.Uint64       `json:"eip161abcTransition"`
 		EIP161dTransition        hexutil.Uint64       `json:"eip161dTransition"`
@@ -250,8 +251,13 @@ type parityChainSpec struct {
 		EIP145Transition         hexutil.Uint64       `json:"eip145Transition"`
 		EIP1014Transition        hexutil.Uint64       `json:"eip1014Transition"`
 		EIP1052Transition        hexutil.Uint64       `json:"eip1052Transition"`
+		EIP1108Transition        hexutil.Uint64       `json:"eip1108Transition"`
 		EIP1283Transition        hexutil.Uint64       `json:"eip1283Transition"`
 		EIP1283DisableTransition hexutil.Uint64       `json:"eip1283DisableTransition"`
+		EIP1344Transition        hexutil.Uint64       `json:"eip1344Transition"`
+		EIP1884Transition        hexutil.Uint64       `json:"eip1884Transition"`
+		EIP2028Transition        hexutil.Uint64       `json:"eip2028Transition"`
+		EIP2200Transition        hexutil.Uint64       `json:"eip2200Transition"`
 	} `json:"params"`
 
 	Genesis struct {
@@ -358,7 +364,10 @@ func newParityChainSpec(network string, genesis *core.Genesis, bootnodes []strin
 	if num := genesis.Config.PetersburgBlock; num != nil {
 		spec.setConstantinopleFix(num)
 	}
-
+	// Istanbul
+	if num := genesis.Config.IstanbulBlock; num != nil {
+		spec.setIstanbul(num)
+	}
 	spec.Params.MaximumExtraDataSize = (hexutil.Uint64)(params.MaximumExtraDataSize)
 	spec.Params.MinGasLimit = (hexutil.Uint64)(params.MinGasLimit)
 	spec.Params.GasLimitBoundDivisor = (math2.HexOrDecimal64)(params.GasLimitBoundDivisor)
@@ -457,6 +466,15 @@ func (spec *parityChainSpec) setConstantinopleFix(num *big.Int) {
 	spec.Params.EIP1283DisableTransition = hexutil.Uint64(num.Uint64())
 }
 
+func (spec *parityChainSpec) setIstanbul(num *big.Int) {
+	spec.Params.EIP152Transition = hexutil.Uint64(num.Uint64())
+	spec.Params.EIP1108Transition = hexutil.Uint64(num.Uint64())
+	spec.Params.EIP1344Transition = hexutil.Uint64(num.Uint64())
+	spec.Params.EIP1884Transition = hexutil.Uint64(num.Uint64())
+	spec.Params.EIP2028Transition = hexutil.Uint64(num.Uint64())
+	spec.Params.EIP2200Transition = hexutil.Uint64(num.Uint64())
+}
+
 // pyEthereumGenesisSpec represents the genesis specification format used by the
 // Python Ethereum implementation.
 type pyEthereumGenesisSpec struct {
diff --git a/cmd/puppeth/wizard_genesis.go b/cmd/puppeth/wizard_genesis.go
index 10f496f41b..44b607ce86 100644
--- a/cmd/puppeth/wizard_genesis.go
+++ b/cmd/puppeth/wizard_genesis.go
@@ -51,6 +51,7 @@ func (w *wizard) makeGenesis() {
 			ByzantiumBlock:      big.NewInt(0),
 			ConstantinopleBlock: big.NewInt(0),
 			PetersburgBlock:     big.NewInt(0),
+			IstanbulBlock:       big.NewInt(0),
 		},
 	}
 	// Figure out which consensus engine to choose
@@ -230,6 +231,10 @@ func (w *wizard) manageGenesis() {
 		fmt.Printf("Which block should Petersburg come into effect? (default = %v)\n", w.conf.Genesis.Config.PetersburgBlock)
 		w.conf.Genesis.Config.PetersburgBlock = w.readDefaultBigInt(w.conf.Genesis.Config.PetersburgBlock)
 
+		fmt.Println()
+		fmt.Printf("Which block should Istanbul come into effect? (default = %v)\n", w.conf.Genesis.Config.IstanbulBlock)
+		w.conf.Genesis.Config.IstanbulBlock = w.readDefaultBigInt(w.conf.Genesis.Config.IstanbulBlock)
+
 		out, _ := json.MarshalIndent(w.conf.Genesis.Config, "", "  ")
 		fmt.Printf("Chain configuration updated:\n\n%s\n", out)