diff --git a/main.go b/main.go
index 365e9b1..dda3d09 100644
--- a/main.go
+++ b/main.go
@@ -24,7 +24,7 @@ var (
 	ref        string // plugin repository reference
 	sha        string // plugin repository commit
 	kind       string // plugin kind (action, bitrise, harness)
-	outputfile string // plugin outputfile
+	outputFile string // plugin outputfile
 )
 
 func main() {
@@ -38,7 +38,6 @@ func main() {
 	flag.StringVar(&ref, "ref", "", "plugin reference")
 	flag.StringVar(&sha, "sha", "", "plugin commit")
 	flag.StringVar(&kind, "kind", "", "plugin kind")
-	flag.StringVar(&outputfile, "outputfile", "", "filepath to store output variables")
 	flag.Parse()
 
 	// the user may specific the action plugin alias instead
@@ -104,6 +103,8 @@ func main() {
 		os.Exit(1)
 	}
 
+	outputFile = os.Getenv("DRONE_OUTPUT")
+
 	switch {
 	// execute harness plugin
 	case harness.Is(codedir) || kind == "harness":
@@ -131,7 +132,7 @@ func main() {
 			Environ: bitrise.Environ(
 				os.Environ(),
 			),
-			Outputfile: outputfile,
+			OutputFile: outputFile,
 		}
 		if err := execer.Exec(ctx); err != nil {
 			log.Error("step failed", err)
@@ -146,7 +147,7 @@ func main() {
 			Stdout:     os.Stdout,
 			Stderr:     os.Stderr,
 			Environ:    os.Environ(),
-			Outputfile: outputfile,
+			OutputFile: outputFile,
 		}
 		if err := execer.Exec(ctx); err != nil {
 			log.Error("action step failed", err)
diff --git a/plugin/bitrise/execer.go b/plugin/bitrise/execer.go
index 3fb780f..f541d63 100644
--- a/plugin/bitrise/execer.go
+++ b/plugin/bitrise/execer.go
@@ -21,7 +21,7 @@ type Execer struct {
 	Environ    []string
 	Stdout     io.Writer
 	Stderr     io.Writer
-	Outputfile string
+	OutputFile string
 }
 
 // Exec executes a bitrise plugin.
@@ -149,9 +149,9 @@ func (e *Execer) Exec(ctx context.Context) error {
 	}
 
 	// save to outputfile if present
-	if len(e.Outputfile) > 0 {
+	if len(e.OutputFile) > 0 {
 		if m, err := readEnvStore(e.Source); err == nil && len(m.Envs) > 0 {
-			if err = saveOutputFromEnvStore(m.Envs, e.Outputfile); err != nil {
+			if err = saveOutputFromEnvStore(m.Envs, e.OutputFile); err != nil {
 				slog.FromContext(ctx).Error("Unable to save output", err)
 			}
 		} else if err != nil {
diff --git a/plugin/github/execer.go b/plugin/github/execer.go
index 64c49fa..b13f386 100644
--- a/plugin/github/execer.go
+++ b/plugin/github/execer.go
@@ -22,7 +22,7 @@ type Execer struct {
 	Name       string
 	Environ    []string
 	TmpDir     string
-	Outputfile string
+	OutputFile string
 	Stdout     io.Writer
 	Stderr     io.Writer
 }
@@ -41,7 +41,7 @@ func (e *Execer) Exec(ctx context.Context) error {
 	workflowFile := filepath.Join(e.TmpDir, "workflow.yml")
 	beforeStepEnvFile := filepath.Join(e.TmpDir, "before.env")
 	afterStepEnvFile := filepath.Join(e.TmpDir, "after.env")
-	if err := createWorkflowFile(e.Name, envVars, workflowFile, beforeStepEnvFile, afterStepEnvFile, e.Outputfile, outputVars); err != nil {
+	if err := createWorkflowFile(e.Name, envVars, workflowFile, beforeStepEnvFile, afterStepEnvFile, e.OutputFile, outputVars); err != nil {
 		return err
 	}
 
diff --git a/plugin/github/workflow.go b/plugin/github/workflow.go
index c7be355..32445a7 100644
--- a/plugin/github/workflow.go
+++ b/plugin/github/workflow.go
@@ -46,7 +46,7 @@ const (
 )
 
 func createWorkflowFile(action string, envVars map[string]string,
-	ymlFile, beforeStepEnvFile, afterStepEnvFile string, outputfile string, output_vars []string) error {
+	ymlFile, beforeStepEnvFile, afterStepEnvFile string, outputFile string, outputVars []string) error {
 	with, err := getWith(envVars)
 	if err != nil {
 		return err
@@ -63,7 +63,7 @@ func createWorkflowFile(action string, envVars map[string]string,
 				With: with,
 				Env:  env,
 			},
-			getOutputVariables(stepId, outputfile, output_vars),
+			getOutputVariables(stepId, outputFile, outputVars),
 			prePostStep("after", afterStepEnvFile),
 		},
 	}
@@ -112,17 +112,17 @@ func prePostStep(name, envFile string) step {
 	return s
 }
 
-func getOutputVariables(prevStepId, outputfile string, output_vars []string) step {
-	skip := len(outputfile) == 0 || len(output_vars) == 0
+func getOutputVariables(prevStepId, outputFile string, outputVars []string) step {
+	skip := len(outputFile) == 0 || len(outputVars) == 0
 	cmd := ""
-	for _, output_var := range output_vars {
-		cmd += fmt.Sprintf("print(\"%s\"+\"=\"+\"${{ steps.%s.outputs.%s }}\"); ", output_var, prevStepId, output_var)
+	for _, outputVar := range outputVars {
+		cmd += fmt.Sprintf("print(\"%s\"+\"=\"+\"${{ steps.%s.outputs.%s }}\"); ", outputVar, prevStepId, outputVar)
 	}
 
 	if runtime.GOOS == "darwin" && runtime.GOARCH == "arm64" {
-		cmd = fmt.Sprintf("python3 -c '%s' > %s", cmd, outputfile)
+		cmd = fmt.Sprintf("python3 -c '%s' > %s", cmd, outputFile)
 	} else {
-		cmd = fmt.Sprintf("python -c '%s' > %s", cmd, outputfile)
+		cmd = fmt.Sprintf("python -c '%s' > %s", cmd, outputFile)
 	}
 	s := step{
 		Name: "output variables",