diff --git a/build/buildconstants/params_2k.go b/build/buildconstants/params_2k.go
index 3e4c3d8099f..20fb5ac2f4b 100644
--- a/build/buildconstants/params_2k.go
+++ b/build/buildconstants/params_2k.go
@@ -173,6 +173,7 @@ func init() {
 	UpgradeTuktukHeight = getUpgradeHeight("LOTUS_TUKTUK_HEIGHT", UpgradeTuktukHeight)
 	UpgradeTeepHeight = getUpgradeHeight("LOTUS_TEEP_HEIGHT", UpgradeTeepHeight)
 	UpgradeTockHeight = getUpgradeHeight("LOTUS_TOCK_HEIGHT", UpgradeTockHeight)
+	UpgradeTockFixHeight = getUpgradeHeight("LOTUS_TOCK_FIX_HEIGHT", UpgradeTockFixHeight)
 
 	DrandSchedule = map[abi.ChainEpoch]DrandEnum{
 		0: DrandQuicknet,