1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/nixos/modules/services/monitoring/mackerel-agent.nix b/nixpkgs/nixos/modules/services/monitoring/mackerel-agent.nix
index 5915634ed26f..d1e84c0359dc 100644
--- a/nixpkgs/nixos/modules/services/monitoring/mackerel-agent.nix
+++ b/nixpkgs/nixos/modules/services/monitoring/mackerel-agent.nix
@@ -81,7 +81,7 @@ in {
       include = mkDefault "/etc/mackerel-agent/conf.d/*.conf";
     };
 
-    # upstream service file in https://git.io/JUt4Q
+    # upstream service file in https://github.com/mackerelio/mackerel-agent/blob/master/packaging/rpm/src/mackerel-agent.service
     systemd.services.mackerel-agent = {
       description = "mackerel.io agent";
       wants = [ "network-online.target" ];