diff --git a/lightningd/options.c b/lightningd/options.c
index 57a75c849..5279f4874 100644
--- a/lightningd/options.c
+++ b/lightningd/options.c
@@ -219,7 +219,7 @@ static void config_register_opts(struct lightningd *ld)
 			 "Blocks before peer can unilaterally spend funds");
 	opt_register_arg("--max-locktime-blocks", opt_set_u32, opt_show_u32,
 			 &ld->config.locktime_max,
-			 "Maximum seconds peer can lock up our funds");
+			 "Maximum blocks a peer can lock up our funds");
 	opt_register_arg("--anchor-onchain", opt_set_u32, opt_show_u32,
 			 &ld->config.anchor_onchain_wait,
 			 "Blocks before we give up on pending anchor transaction");