diff --git a/src/main.c b/src/main.c
index 15008ec..baca05e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -89,7 +89,7 @@ static int get_setting(char * const *av, struct setting *settings)
     settings->verbose = parameters[1].value;
     settings->numeric_only = parameters[2].value;
     size_t ttl;
-    if (parsing_number(parameters[3].value, 0, 255, &ttl))
+    if (parsing_number(parameters[3].value, 1, 255, &ttl))
         return 2;
     settings->ttl = ttl;
     if (parsing_number(parameters[4].value, 0, 2147483647, &settings->payload_size))