diff --git a/nixos/modules/services/security/vault.nix b/nixos/modules/services/security/vault.nix
index b0ab8fadcbec..6a8a3a93327e 100644
--- a/nixos/modules/services/security/vault.nix
+++ b/nixos/modules/services/security/vault.nix
@@ -135,6 +135,7 @@ in
         User = "vault";
         Group = "vault";
         ExecStart = "${cfg.package}/bin/vault server -config ${configFile}";
+        ExecReload = "${pkgs.coreutils}/bin/kill -SIGHUP $MAINPID";
         PrivateDevices = true;
         PrivateTmp = true;
         ProtectSystem = "full";