diff --git a/modules/zabbix-agent.nix b/modules/zabbix-agent.nix
index df42285..6ac13f9 100644
--- a/modules/zabbix-agent.nix
+++ b/modules/zabbix-agent.nix
@@ -6,7 +6,7 @@
     package = pkgs.zabbix.agent2;
     settings = {
       UserParameter = ''
-      systemd.exitstatus[*],systemctl status "$1" | grep "Main PID: " | grep -Po "(?<=status=)[0-9]{1,3}"
+      systemd.exitstatus[*],systemctl status "$1" | grep "Main PID: " | grep -Po "(?<=status=)[0-9]{1,3}(?=(/|))"
       '';
     };
   };