diff --git a/core/vm/interpreter.go b/core/vm/interpreter.go
index 7d38adf36f..18081ec4c9 100644
--- a/core/vm/interpreter.go
+++ b/core/vm/interpreter.go
@@ -211,6 +211,7 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) (
 			}
 		}
 		// Static portion of gas
+		cost = operation.constantGas // For tracing
 		if !contract.UseGas(operation.constantGas) {
 			return nil, ErrOutOfGas
 		}
@@ -235,8 +236,10 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) (
 		// consume the gas and return an error if not enough gas is available.
 		// cost is explicitly set so that the capture state defer method can get the proper cost
 		if operation.dynamicGas != nil {
-			cost, err = operation.dynamicGas(in.evm, contract, stack, mem, memorySize)
-			if err != nil || !contract.UseGas(cost) {
+			var dynamicCost uint64
+			dynamicCost, err = operation.dynamicGas(in.evm, contract, stack, mem, memorySize)
+			cost += dynamicCost // total cost, for debug tracing
+			if err != nil || !contract.UseGas(dynamicCost) {
 				return nil, ErrOutOfGas
 			}
 		}