diff --git a/build/titan/zrepl.nix b/build/titan/zrepl.nix
index 80034e79..4f4ceed0 100644
--- a/build/titan/zrepl.nix
+++ b/build/titan/zrepl.nix
@@ -33,7 +33,7 @@
           prefix = "zrepl_snap_";
           hooks = [
             {
-              # https://zrepl.github.io/master/configuration/snapshotting.html#postgres-checkpoint-hook
+              # https://zrepl.github.io/configuration/snapshotting.html#postgres-checkpoint-hook
               type = "postgres-checkpoint";
               dsn = "host=/run/postgresql dbname=hydra user=root sslmode=disable";
               filesystems."zroot/pg" = true;