diff --git a/upstart-jobs/apache-httpd/zabbix.nix b/upstart-jobs/apache-httpd/zabbix.nix
index c7f48fe7df6a..de597f6c4da4 100644
--- a/upstart-jobs/apache-httpd/zabbix.nix
+++ b/upstart-jobs/apache-httpd/zabbix.nix
@@ -20,6 +20,13 @@ in
 
 {
 
+  extraModules = [
+    { name = "php5"; path = "${pkgs.php}/modules/libphp5.so"; }
+  ];
+
+  # !!! should also declare PHP options that Zabbix needs like the
+  # timezone and timeout.
+  
   extraConfig = ''
     Alias ${config.urlPrefix}/ ${zabbixPHP}/
     
@@ -35,6 +42,9 @@ in
     chown -R ${serverInfo.serverConfig.user} ${config.stateDir}
   '';
 
+  # The frontend needs "ps" to find out whether zabbix_server is running.
+  extraServerPath = ["${pkgs.procps}/bin"];
+
   options = {
 
     urlPrefix = pkgs.lib.mkOption {