diff --git a/nixos/modules/services/monitoring/collectd.nix b/nixos/modules/services/monitoring/collectd.nix
index 414831ae9d4..a3280b08bd0 100644
--- a/nixos/modules/services/monitoring/collectd.nix
+++ b/nixos/modules/services/monitoring/collectd.nix
@@ -36,6 +36,7 @@ in {
 
     package = mkOption {
       default = pkgs.collectd;
+      defaultText = "pkgs.collectd";
       description = ''
         Which collectd package to use.
       '';