diff --git a/cmd/sing-box/cmd_check.go b/cmd/sing-box/cmd_check.go
index 29a3908168..765302e1b7 100644
--- a/cmd/sing-box/cmd_check.go
+++ b/cmd/sing-box/cmd_check.go
@@ -5,6 +5,7 @@ import (
 
 	"github.com/sagernet/sing-box"
 	"github.com/sagernet/sing-box/log"
+	"github.com/sagernet/sing-box/option"
 
 	"github.com/spf13/cobra"
 )
@@ -30,6 +31,7 @@ func check() error {
 	if err != nil {
 		return err
 	}
+	prepareOptionsForCheck(&options)
 	ctx, cancel := context.WithCancel(globalCtx)
 	instance, err := box.New(box.Options{
 		Context: ctx,
@@ -41,3 +43,9 @@ func check() error {
 	cancel()
 	return err
 }
+
+func prepareOptionsForCheck(options *option.Options) {
+	options.Log = &option.LogOptions{
+		Disabled: true,
+	}
+}
diff --git a/cmd/sing-box/cmd_check_test.go b/cmd/sing-box/cmd_check_test.go
new file mode 100644
index 0000000000..3449b69059
--- /dev/null
+++ b/cmd/sing-box/cmd_check_test.go
@@ -0,0 +1,43 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/sagernet/sing-box/option"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestPrepareOptionsForCheck(t *testing.T) {
+	t.Parallel()
+
+	t.Run("override existing log options", func(t *testing.T) {
+		t.Parallel()
+
+		logOptions := &option.LogOptions{
+			Level:     "trace",
+			Timestamp: true,
+			Output:    "stderr",
+		}
+		options := option.Options{
+			Log: logOptions,
+		}
+
+		prepareOptionsForCheck(&options)
+
+		require.NotNil(t, options.Log)
+		require.True(t, options.Log.Disabled)
+		require.NotSame(t, logOptions, options.Log)
+	})
+
+	t.Run("set log options when absent", func(t *testing.T) {
+		t.Parallel()
+
+		options := option.Options{}
+
+		prepareOptionsForCheck(&options)
+
+		require.NotNil(t, options.Log)
+		require.True(t, options.Log.Disabled)
+	})
+}
diff --git a/docs/changelog.md b/docs/changelog.md
index e51e6ed94b..71362bf5e8 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -2,6 +2,10 @@
 icon: material/alert-decagram
 ---
 
+#### 1.14.0-alpha.20
+
+** Fixes and improvements
+
 #### 1.14.0-alpha.19
 
 * Preserve comments between formatting