diff --git a/nixos/modules/services/databases/openldap.nix b/nixos/modules/services/databases/openldap.nix
index c95238b3451..eae4c114fc1 100644
--- a/nixos/modules/services/databases/openldap.nix
+++ b/nixos/modules/services/databases/openldap.nix
@@ -68,7 +68,7 @@ in
 
     users.extraUsers = optionalAttrs (cfg.user == "openldap") (singleton
       { name = "openldap";
-        group = "openldap";
+        group = cfg.group;
         uid = config.ids.uids.openldap;
       });
 
diff --git a/nixos/modules/services/web-servers/apache-httpd/default.nix b/nixos/modules/services/web-servers/apache-httpd/default.nix
index c76f127b721..6d0416fbb15 100644
--- a/nixos/modules/services/web-servers/apache-httpd/default.nix
+++ b/nixos/modules/services/web-servers/apache-httpd/default.nix
@@ -596,7 +596,7 @@ in
 
     users.extraUsers = optionalAttrs (mainCfg.user == "wwwrun") (singleton
       { name = "wwwrun";
-        group = "wwwrun";
+        group = mainCfg.group;
         description = "Apache httpd user";
         uid = config.ids.uids.wwwrun;
       });
diff --git a/nixos/modules/services/web-servers/nginx/default.nix b/nixos/modules/services/web-servers/nginx/default.nix
index ff94ee42d28..ef1aaee7557 100644
--- a/nixos/modules/services/web-servers/nginx/default.nix
+++ b/nixos/modules/services/web-servers/nginx/default.nix
@@ -105,7 +105,7 @@ in
 
     users.extraUsers = optionalAttrs (cfg.user == "nginx") (singleton
       { name = "nginx";
-        group = "nginx";
+        group = cfg.group;
         uid = config.ids.uids.nginx;
       });