diff --git a/src/ping/cli/handlers/handle_ttl.c b/src/ping/cli/handlers/handle_ttl.c
index b23479c..c975e1a 100644
--- a/src/ping/cli/handlers/handle_ttl.c
+++ b/src/ping/cli/handlers/handle_ttl.c
@@ -7,7 +7,7 @@ cli_handle_ttl(const char *arg, void *config_void)
 	struct ping_config	*config = (struct ping_config *)config_void;
 	uint64_t			ttl;
 
-	if (0 != cli_parse_uint64(arg, &ttl) || ttl > 255)
+	if (0 != cli_parse_uint64(arg, &ttl) || ttl > 255 || 0 == ttl)
 		return CLI_ERROR;
 
 	config->ttl = (uint8_t)ttl;