diff --git a/cmd/go-canal/main.go b/cmd/go-canal/main.go
index 6f60a4a73..c1975b1d1 100644
--- a/cmd/go-canal/main.go
+++ b/cmd/go-canal/main.go
@@ -56,7 +56,7 @@ func main() {
 		os.Exit(1)
 	}
 
-	if len(*ignoreTables) == 0 {
+	if len(*ignoreTables) > 0 {
 		subs := strings.Split(*ignoreTables, ",")
 		for _, sub := range subs {
 			if seps := strings.Split(sub, "."); len(seps) == 2 {