diff --git a/pkg/util.go b/pkg/util.go
index 338937b..1c03495 100644
--- a/pkg/util.go
+++ b/pkg/util.go
@@ -17,6 +17,7 @@ func Try(f func() bool, maxTry int) error {
 		if f() {
 			return nil
 		}
+		n++
 	}
 	return errors.New("try run function error")
 }