diff --git a/nixos/modules/services/web-servers/apache-httpd/default.nix b/nixos/modules/services/web-servers/apache-httpd/default.nix
index 1eac5be2f8d..8f00f81b078 100644
--- a/nixos/modules/services/web-servers/apache-httpd/default.nix
+++ b/nixos/modules/services/web-servers/apache-httpd/default.nix
@@ -705,10 +705,7 @@ in
 
         path =
           [ httpd pkgs.coreutils pkgs.gnugrep ]
-          ++ # Needed for PHP's mail() function.  !!! Probably the
-             # ssmtp module should export the path to sendmail in
-             # some way.
-             optional config.networking.defaultMailServer.directDelivery pkgs.ssmtp
+          ++ optional enablePHP pkgs.system-sendmail # Needed for PHP's mail() function.
           ++ concatMap (svc: svc.extraServerPath) allSubservices;
 
         environment =