diff --git a/ethcore/res/ethereum/classic.json b/ethcore/res/ethereum/classic.json
index ca4e0ea99..9373a2041 100644
--- a/ethcore/res/ethereum/classic.json
+++ b/ethcore/res/ethereum/classic.json
@@ -13,7 +13,7 @@
 				"homesteadTransition": "0x118c30",
 				"eip150Transition": "0x2625a0",
 				"eip155Transition": 3000000,
-				"eip160Transition": "0x7fffffffffffffff",
+				"eip160Transition": 3000000,
 				"eip161abcTransition": "0x7fffffffffffffff",
 				"eip161dTransition": "0x7fffffffffffffff",
 				"ecip1010PauseTransition": "0x2dc6c0",