1 files changed, 2 insertions, 0 deletions
diff --git a/main.cpp b/main.cpp
index a04b0db..1ce25be 100644
--- a/main.cpp
+++ b/main.cpp
@@ -40,6 +40,8 @@ int main(int argc, char **argv)
 		printf("error, length must be more than 0\n");
 		return 1;
 	}
+	if(min_len == 0)
+		min_len = 1;
 	if(min_len > max_len)
 	{
 		printf("error, max length must be greater or equal min_length\n");