diff --git a/nixos/modules/services/mail/postfixadmin.nix b/nixos/modules/services/mail/postfixadmin.nix
index f5c8efb3076c..a0846ad52902 100644
--- a/nixos/modules/services/mail/postfixadmin.nix
+++ b/nixos/modules/services/mail/postfixadmin.nix
@@ -114,7 +114,7 @@ in
               location ~* \.php$ {
                 fastcgi_split_path_info ^(.+\.php)(/.+)$;
                 fastcgi_pass unix:${fpm.socket};
-                include ${pkgs.nginx}/conf/fastcgi_params;
+                include ${config.services.nginx.package}/conf/fastcgi_params;
                 include ${pkgs.nginx}/conf/fastcgi.conf;
               }
             '';
diff --git a/nixos/modules/services/mail/roundcube.nix b/nixos/modules/services/mail/roundcube.nix
index ac192c56aa60..1dd393da8822 100644
--- a/nixos/modules/services/mail/roundcube.nix
+++ b/nixos/modules/services/mail/roundcube.nix
@@ -153,7 +153,7 @@ in
               location ~* \.php$ {
                 fastcgi_split_path_info ^(.+\.php)(/.+)$;
                 fastcgi_pass unix:${fpm.socket};
-                include ${pkgs.nginx}/conf/fastcgi_params;
+                include ${config.services.nginx.package}/conf/fastcgi_params;
                 include ${pkgs.nginx}/conf/fastcgi.conf;
               }
             '';
diff --git a/nixos/modules/services/misc/sourcehut/git.nix b/nixos/modules/services/misc/sourcehut/git.nix
index 5ce16df8cd87..ff110905d184 100644
--- a/nixos/modules/services/misc/sourcehut/git.nix
+++ b/nixos/modules/services/misc/sourcehut/git.nix
@@ -207,7 +207,7 @@ in
                 fastcgi_param PATH_INFO $uri;
                 fastcgi_param GIT_PROJECT_ROOT $document_root;
                 fastcgi_read_timeout 500s;
-                include ${pkgs.nginx}/conf/fastcgi_params;
+                include ${config.services.nginx.package}/conf/fastcgi_params;
                 gzip off;
             }
       '';
diff --git a/nixos/modules/services/misc/zoneminder.nix b/nixos/modules/services/misc/zoneminder.nix
index 407742f72ad5..a557e742b7cf 100644
--- a/nixos/modules/services/misc/zoneminder.nix
+++ b/nixos/modules/services/misc/zoneminder.nix
@@ -254,7 +254,7 @@ in {
                 location /cgi-bin {
                   gzip off;
 
-                  include ${pkgs.nginx}/conf/fastcgi_params;
+                  include ${config.services.nginx.package}/conf/fastcgi_params;
                   fastcgi_param SCRIPT_FILENAME ${pkg}/libexec/zoneminder/${zms};
                   fastcgi_param HTTP_PROXY "";
                   fastcgi_intercept_errors on;
@@ -270,7 +270,7 @@ in {
                   try_files $uri =404;
                   fastcgi_index index.php;
 
-                  include ${pkgs.nginx}/conf/fastcgi_params;
+                  include ${config.services.nginx.package}/conf/fastcgi_params;
                   fastcgi_param SCRIPT_FILENAME $request_filename;
                   fastcgi_param HTTP_PROXY "";
 
diff --git a/nixos/modules/services/web-apps/dokuwiki.nix b/nixos/modules/services/web-apps/dokuwiki.nix
index 30913ced8849..1f8ca742db95 100644
--- a/nixos/modules/services/web-apps/dokuwiki.nix
+++ b/nixos/modules/services/web-apps/dokuwiki.nix
@@ -376,7 +376,7 @@ in
           "~ \\.php$" = {
             extraConfig = ''
               try_files $uri $uri/ /doku.php;
-              include ${pkgs.nginx}/conf/fastcgi_params;
+              include ${config.services.nginx.package}/conf/fastcgi_params;
               fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
               fastcgi_param REDIRECT_STATUS 200;
               fastcgi_pass unix:${config.services.phpfpm.pools."dokuwiki-${hostName}".socket};
diff --git a/nixos/modules/services/web-apps/jirafeau.nix b/nixos/modules/services/web-apps/jirafeau.nix
index a95e2b4f82a9..328c61c8e646 100644
--- a/nixos/modules/services/web-apps/jirafeau.nix
+++ b/nixos/modules/services/web-apps/jirafeau.nix
@@ -136,7 +136,7 @@ in
               '';
             locations = {
               "~ \\.php$".extraConfig = ''
-                include ${pkgs.nginx}/conf/fastcgi_params;
+                include ${config.services.nginx.package}/conf/fastcgi_params;
                 fastcgi_split_path_info ^(.+\.php)(/.+)$;
                 fastcgi_index index.php;
                 fastcgi_pass unix:${config.services.phpfpm.pools.jirafeau.socket};
diff --git a/nixos/modules/services/web-apps/restya-board.nix b/nixos/modules/services/web-apps/restya-board.nix
index fd97ab76a5f6..4b36cc8754c6 100644
--- a/nixos/modules/services/web-apps/restya-board.nix
+++ b/nixos/modules/services/web-apps/restya-board.nix
@@ -235,7 +235,7 @@ in
       locations."~ \\.php$" = {
         tryFiles = "$uri =404";
         extraConfig = ''
-          include ${pkgs.nginx}/conf/fastcgi_params;
+          include ${config.services.nginx.package}/conf/fastcgi_params;
           fastcgi_pass    unix:${fpm.socket};
           fastcgi_index   index.php;
           fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;
diff --git a/nixos/modules/services/web-apps/rss-bridge.nix b/nixos/modules/services/web-apps/rss-bridge.nix
index 456ca00416fe..f2b6d9559823 100644
--- a/nixos/modules/services/web-apps/rss-bridge.nix
+++ b/nixos/modules/services/web-apps/rss-bridge.nix
@@ -111,7 +111,7 @@ in
 
           locations."~ ^/index.php(/|$)" = {
             extraConfig = ''
-              include ${pkgs.nginx}/conf/fastcgi_params;
+              include ${config.services.nginx.package}/conf/fastcgi_params;
               fastcgi_split_path_info ^(.+\.php)(/.+)$;
               fastcgi_pass unix:${config.services.phpfpm.pools.${cfg.pool}.socket};
               fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
diff --git a/nixos/modules/services/web-servers/nginx/gitweb.nix b/nixos/modules/services/web-servers/nginx/gitweb.nix
index 11bf2a309ea8..db45577a46d1 100644
--- a/nixos/modules/services/web-servers/nginx/gitweb.nix
+++ b/nixos/modules/services/web-servers/nginx/gitweb.nix
@@ -79,7 +79,7 @@ in
         };
         locations."${cfg.location}/" = {
           extraConfig = ''
-            include ${pkgs.nginx}/conf/fastcgi_params;
+            include ${config.services.nginx.package}/conf/fastcgi_params;
             fastcgi_param GITWEB_CONFIG ${gitwebConfig.gitwebConfigFile};
             fastcgi_pass unix:/run/gitweb/gitweb.sock;
           '';
diff --git a/nixos/tests/gitolite-fcgiwrap.nix b/nixos/tests/gitolite-fcgiwrap.nix
index fc9b214b762e..38f8d5c883fd 100644
--- a/nixos/tests/gitolite-fcgiwrap.nix
+++ b/nixos/tests/gitolite-fcgiwrap.nix
@@ -42,7 +42,7 @@ import ./make-test-python.nix (
                     auth_basic_user_file /etc/gitolite/htpasswd;
 
                     # common FastCGI parameters are required
-                    include ${pkgs.nginx}/conf/fastcgi_params;
+                    include ${config.services.nginx.package}/conf/fastcgi_params;
 
                     # strip the CGI program prefix
                     fastcgi_split_path_info ^(/git)(.*)$;
diff --git a/nixos/tests/php/fpm.nix b/nixos/tests/php/fpm.nix
index 31a79bb4dbe3..718a635a6c7c 100644
--- a/nixos/tests/php/fpm.nix
+++ b/nixos/tests/php/fpm.nix
@@ -17,7 +17,7 @@ import ../make-test-python.nix ({ pkgs, lib, php, ... }: {
           locations."~ \\.php$".extraConfig = ''
             fastcgi_pass unix:${config.services.phpfpm.pools.foobar.socket};
             fastcgi_index index.php;
-            include ${pkgs.nginx}/conf/fastcgi_params;
+            include ${config.services.nginx.package}/conf/fastcgi_params;
             include ${pkgs.nginx}/conf/fastcgi.conf;
           '';
           locations."/" = {