diff --git a/params/config.go b/params/config.go
index 591226da76..d84c4e954c 100644
--- a/params/config.go
+++ b/params/config.go
@@ -292,8 +292,8 @@ type ChainConfig struct {
 	ConstantinopleBlock *big.Int `json:"constantinopleBlock,omitempty"` // Constantinople switch block (nil = no fork, 0 = already activated)
 	PetersburgBlock     *big.Int `json:"petersburgBlock,omitempty"`     // Petersburg switch block (nil = same as Constantinople)
 	IstanbulBlock       *big.Int `json:"istanbulBlock,omitempty"`       // Istanbul switch block (nil = no fork, 0 = already on istanbul)
-	EWASMBlock          *big.Int `json:"ewasmBlock,omitempty"`          // EWASM switch block (nil = no fork, 0 = already activated)
 	EIP2384Block        *big.Int `json:"eip2384Block,omitempty"`        // Eip-2384 (bomb delay) switch block (nil = no fork, 0 = already activated)
+	EWASMBlock          *big.Int `json:"ewasmBlock,omitempty"`          // EWASM switch block (nil = no fork, 0 = already activated)
 
 	// Various consensus engines
 	Ethash *EthashConfig `json:"ethash,omitempty"`
@@ -330,7 +330,7 @@ func (c *ChainConfig) String() string {
 	default:
 		engine = "unknown"
 	}
-	return fmt.Sprintf("{ChainID: %v Homestead: %v DAO: %v DAOSupport: %v EIP150: %v EIP155: %v EIP158: %v Byzantium: %v Constantinople: %v Petersburg: %v Istanbul: %v Engine: %v}",
+	return fmt.Sprintf("{ChainID: %v Homestead: %v DAO: %v DAOSupport: %v EIP150: %v EIP155: %v EIP158: %v Byzantium: %v Constantinople: %v Petersburg: %v Istanbul: %v, EIP-2384: %v, Engine: %v}",
 		c.ChainID,
 		c.HomesteadBlock,
 		c.DAOForkBlock,
@@ -342,6 +342,7 @@ func (c *ChainConfig) String() string {
 		c.ConstantinopleBlock,
 		c.PetersburgBlock,
 		c.IstanbulBlock,
+		c.EIP2384Block,
 		engine,
 	)
 }
@@ -491,6 +492,9 @@ func (c *ChainConfig) checkCompatible(newcfg *ChainConfig, head *big.Int) *Confi
 	if isForkIncompatible(c.IstanbulBlock, newcfg.IstanbulBlock, head) {
 		return newCompatError("Istanbul fork block", c.IstanbulBlock, newcfg.IstanbulBlock)
 	}
+	if isForkIncompatible(c.EIP2384Block, newcfg.EIP2384Block, head) {
+		return newCompatError("EIP-2348 fork block", c.EIP2384Block, newcfg.EIP2384Block)
+	}
 	if isForkIncompatible(c.EWASMBlock, newcfg.EWASMBlock, head) {
 		return newCompatError("ewasm fork block", c.EWASMBlock, newcfg.EWASMBlock)
 	}