diff --git a/src/goodbyedpi.c b/src/goodbyedpi.c
index 095208e..d6cbb5b 100644
--- a/src/goodbyedpi.c
+++ b/src/goodbyedpi.c
@@ -869,7 +869,7 @@ int main(int argc, char *argv[]) {
                     char *autottl_copy = strdup(optarg);
                     if (strchr(autottl_copy, '-')) {
                         // token "-" found, start X-Y parser
-                        char *autottl_current = strtok_r(autottl_copy, "-", &saveptr);
+                        char *autottl_current = strtok(autottl_copy, "-");
                         auto_ttl_1 = atoub(autottl_current, "Set Auto TTL parameter error!");
                         autottl_current = strtok(NULL, "-");
                         if (!autottl_current) {