diff --git a/cmd/evm/runner.go b/cmd/evm/runner.go
index ebb3e04461..772f5c7de5 100644
--- a/cmd/evm/runner.go
+++ b/cmd/evm/runner.go
@@ -158,7 +158,7 @@ func timedExec(bench bool, execFunc func() ([]byte, uint64, error)) ([]byte, exe
 		// Do one warm-up run
 		output, gasUsed, err := execFunc()
 		result := testing.Benchmark(func(b *testing.B) {
-			for i := 0; i < b.N; i++ {
+			for b.Loop() {
 				haveOutput, haveGasUsed, haveErr := execFunc()
 				if !bytes.Equal(haveOutput, output) {
 					panic(fmt.Sprintf("output differs\nhave %x\nwant %x\n", haveOutput, output))