diff --git a/parser.go b/parser.go
index 395b8972..9cd49a00 100644
--- a/parser.go
+++ b/parser.go
@@ -621,6 +621,8 @@ func initParameterIterator(cfg *TConfig, mode string) (err error) {
 	} else {
 		if cfg.ParametersSetting.Iteration > 0 {
 			cfg.ParametersSetting.Iterator.iteration = cfg.ParametersSetting.Iteration
+		} else if cfg.ParametersSetting.Iterator.iteration == 0 {
+			cfg.ParametersSetting.Iterator.iteration = 1
 		}
 	}
 	return nil