diff --git a/ethcore/res/ethereum/morden.json b/ethcore/res/ethereum/morden.json
index 2e45c2edd..e9f8e0e99 100644
--- a/ethcore/res/ethereum/morden.json
+++ b/ethcore/res/ethereum/morden.json
@@ -3,7 +3,7 @@
 	"engineName": "Ethash",
 	"params": {
 		"accountStartNonce": "0x0100000",
-		"frontierCompatibilityModeLimit": "0x10c8e0",
+		"frontierCompatibilityModeLimit": "0x789b0",
 		"maximumExtraDataSize": "0x20",
 		"tieBreakingGas": false,
 		"minGasLimit": "0x1388",