diff --git a/plugin.go b/plugin.go
index 0f6f5c4..e1a3178 100644
--- a/plugin.go
+++ b/plugin.go
@@ -364,7 +364,7 @@ func (p Plugin) Exec() (err error) {
 
 			msg := tgbotapi.NewMessage(user, txt)
 			msg.ParseMode = p.Config.Format
-			msg.DisableWebPagePreview = !p.Config.DisableWebPagePreview
+			msg.DisableWebPagePreview = p.Config.DisableWebPagePreview
 			if err := p.Send(bot, msg); err != nil {
 				return err
 			}
diff --git a/plugin_test.go b/plugin_test.go
index faa3ab5..590db69 100644
--- a/plugin_test.go
+++ b/plugin_test.go
@@ -140,12 +140,13 @@ func TestDisableWebPagePreviewMessage(t *testing.T) {
 	plugin.Config.Format = formatMarkdown
 	plugin.Config.Message = "DisableWebPagePreview https://www.google.com.tw"
 	err = plugin.Exec()
-	assert.NotNil(t, err)
+	assert.Nil(t, err)
 
 	// disable message
 	plugin.Config.DisableWebPagePreview = false
+	plugin.Config.Message = "EnableWebPagePreview https://www.google.com.tw"
 	err = plugin.Exec()
-	assert.NotNil(t, err)
+	assert.Nil(t, err)
 }
 
 func TestBotError(t *testing.T) {