diff --git a/tests/init.go b/tests/init.go
index 373738ec6f..c85e714c00 100644
--- a/tests/init.go
+++ b/tests/init.go
@@ -263,6 +263,23 @@ var Forks = map[string]*params.ChainConfig{
 		MergeNetsplitBlock:      big.NewInt(0),
 		TerminalTotalDifficulty: big.NewInt(0),
 	},
+	"Merge": {
+		ChainID:                 big.NewInt(1),
+		HomesteadBlock:          big.NewInt(0),
+		EIP150Block:             big.NewInt(0),
+		EIP155Block:             big.NewInt(0),
+		EIP158Block:             big.NewInt(0),
+		ByzantiumBlock:          big.NewInt(0),
+		ConstantinopleBlock:     big.NewInt(0),
+		PetersburgBlock:         big.NewInt(0),
+		IstanbulBlock:           big.NewInt(0),
+		MuirGlacierBlock:        big.NewInt(0),
+		BerlinBlock:             big.NewInt(0),
+		LondonBlock:             big.NewInt(0),
+		ArrowGlacierBlock:       big.NewInt(0),
+		MergeNetsplitBlock:      big.NewInt(0),
+		TerminalTotalDifficulty: big.NewInt(0),
+	},
 	"Shanghai": {
 		ChainID:                 big.NewInt(1),
 		HomesteadBlock:          big.NewInt(0),