diff --git a/nixos/modules/services/monitoring/collectd.nix b/nixos/modules/services/monitoring/collectd.nix
index a3280b08bd0c..3c3d83c66ed0 100644
--- a/nixos/modules/services/monitoring/collectd.nix
+++ b/nixos/modules/services/monitoring/collectd.nix
@@ -100,7 +100,7 @@ in {
       wantedBy = [ "multi-user.target" ];
 
       serviceConfig = {
-        ExecStart = "${pkgs.collectd}/sbin/collectd -C ${conf} -P ${cfg.pidFile}";
+        ExecStart = "${cfg.package}/sbin/collectd -C ${conf} -P ${cfg.pidFile}";
         Type = "forking";
         PIDFile = cfg.pidFile;
         User = optional (cfg.user!="root") cfg.user;