diff --git a/config.example.yaml b/config.example.yaml
index 1c29eca..a0f11fd 100644
--- a/config.example.yaml
+++ b/config.example.yaml
@@ -19,7 +19,7 @@ targets:
       url: http://172.21.88.1:8080
       rps: 2.0
       timeout: '3s'
-      http2_enabled: true
+      h2c_enabled: true
   dns:
     - name: 'google'
       domain: 'google.com'
diff --git a/config/config.go b/config/config.go
index c50b2c7..622eaa2 100644
--- a/config/config.go
+++ b/config/config.go
@@ -50,7 +50,7 @@ type HTTP struct {
 	Timeout           time.Duration `mapstructure:"timeout"`
 	TLSSkipVerify     bool          `mapstructure:"tls_skip_verify"`
 	DisableKeepAlives bool          `mapstructure:"disable_keepalives"`
-	Http2Enabled      bool          `mapstructure:"http2_enabled"`
+	H2cEnabled        bool          `mapstructure:"h2c_enabled"`
 	Host              string        `mapstructure:"host"`
 }
 
diff --git a/main.go b/main.go
index 1ef617b..a417a8f 100644
--- a/main.go
+++ b/main.go
@@ -33,10 +33,10 @@ func main() {
 	ctx, cancel := context.WithCancel(context.Background())
 
 	for _, ht := range config.Get().Targets.HTTP {
-		httpProber := prober.NewHttp(ht.Name, ht.URL, ht.RPS, ht.Timeout, ht.TLSSkipVerify, ht.DisableKeepAlives, ht.Http2Enabled, ht.Host)
+		httpProber := prober.NewHttp(ht.Name, ht.URL, ht.RPS, ht.Timeout, ht.TLSSkipVerify, ht.DisableKeepAlives, ht.H2cEnabled, ht.Host)
 
-		klog.Infof("Probing HTTP target '%s' with url '%s', RPS: %.2f, timeout: %s, TLS_skip_verify: %v, disableKeepAlives: %v, http2Enabled: %v ...\n",
-			ht.Name, ht.URL, ht.RPS, ht.Timeout, ht.TLSSkipVerify, ht.DisableKeepAlives, ht.Http2Enabled)
+		klog.Infof("Probing HTTP target '%s' with url '%s', RPS: %.2f, timeout: %s, TLS_skip_verify: %v, disableKeepAlives: %v, h2cEnabled: %v ...\n",
+			ht.Name, ht.URL, ht.RPS, ht.Timeout, ht.TLSSkipVerify, ht.DisableKeepAlives, ht.H2cEnabled)
 		go httpProber.Start(ctx)
 	}
 
diff --git a/prober/http.go b/prober/http.go
index 8dae12c..43bde6b 100644
--- a/prober/http.go
+++ b/prober/http.go
@@ -49,12 +49,12 @@ func init() {
 
 }
 
-func NewHttp(name string, url string, rps float64, timeout time.Duration, tlsSkipVerify, disableKeepAlives, http2Enabled bool, host string) HTTP {
+func NewHttp(name string, url string, rps float64, timeout time.Duration, tlsSkipVerify, disableKeepAlives, h2cEnabled bool, host string) HTTP {
 	client := &http.Client{
 		Timeout: timeout,
 	}
 
-	if http2Enabled {
+	if h2cEnabled {
 		customTransport := &http2.Transport{
 			AllowHTTP: true,
 			DialTLS: func(network, addr string, cfg *tls.Config) (net.Conn, error) {