diff --git a/cdcobserver.go b/cdcobserver.go
index dd30969..5a0b0d6 100644
--- a/cdcobserver.go
+++ b/cdcobserver.go
@@ -54,10 +54,11 @@ func (ob *CDCObserver) Start(ctx context.Context) error {
 	cfg.Addr = fmt.Sprintf("%s:%s", constant.DatabaseHost, port)
 	cfg.User = constant.DatabaseUsername
 	cfg.Password = constant.DatabasePassword
-	// Exclude mysql system tables
-	cfg.ExcludeTableRegex = []string{"mysql\\..*"}
 	// Disable dump by setting Dump.ExecutionPath to empty string
 	cfg.Dump.ExecutionPath = ""
+	// Exclude all databases except cdc-observer
+	cfg.ExcludeTableRegex = []string{"[^cdc-observer]\\..*"}
+	cfg.IncludeTableRegex = []string{"cdc-observer\\..*"}
 
 	c, err := canal.NewCanal(cfg)
 	if err != nil {
diff --git a/handler/cdcobserver_handler.go b/handler/cdcobserver_handler.go
index 56a265e..780ffda 100644
--- a/handler/cdcobserver_handler.go
+++ b/handler/cdcobserver_handler.go
@@ -11,7 +11,7 @@ type CDCObserverHandler struct {
 
 // todo build a tool for print the CDC event in terminal in table style
 func (h *CDCObserverHandler) OnRow(e *canal.RowsEvent) error {
-	log.Infof("%s %v\n", e.Action, e.Rows)
+	log.Infof("%s %s %v\n", e.Table, e.Action, e.Rows)
 	return nil
 }