diff --git a/core/state_transition.go b/core/state_transition.go
index f9c9a2ab5a..ef519918b4 100644
--- a/core/state_transition.go
+++ b/core/state_transition.go
@@ -532,7 +532,7 @@ func (st *stateTransition) execute() (*ExecutionResult, error) {
 
 	effectiveTip := msg.GasPrice
 	if rules.IsLondon {
-		effectiveTip = new(big.Int).Sub(msg.GasFeeCap, st.evm.Context.BaseFee)
+		effectiveTip = new(big.Int).Sub(msg.GasPrice, st.evm.Context.BaseFee)
 		if effectiveTip.Cmp(msg.GasTipCap) > 0 {
 			effectiveTip = msg.GasTipCap
 		}