diff --git a/docs/options.rst b/docs/options.rst
index 33616d7..d198f5e 100644
--- a/docs/options.rst
+++ b/docs/options.rst
@@ -489,7 +489,7 @@ For which domains should this account act as a catch all?
 Note: Does not allow sending from all addresses of these domains.
 
 
-- Type: ``list of one of s``
+- Type: ``list of impossible (empty enum)s``
 - Default: ``[]``
 
 
@@ -858,23 +858,23 @@ check system $HOST
       if loadavg (15min) > 70 for 8 cycles then alert
 
 check process sshd with pidfile /var/run/sshd.pid
-      start program  "/nix/store/gyg6zyw1f0d1ahh1yk0pl18sxwx5a3zc-systemd-246.6/bin/systemctl start sshd"
-      stop program  "/nix/store/gyg6zyw1f0d1ahh1yk0pl18sxwx5a3zc-systemd-246.6/bin/systemctl stop sshd"
+      start program  "<OUTPUT-PATH>/bin/systemctl start sshd"
+      stop program  "<OUTPUT-PATH>/bin/systemctl stop sshd"
       if failed port 22 protocol ssh for 2 cycles then restart
 
 check process postfix with pidfile /var/lib/postfix/queue/pid/master.pid
-      start program = "/nix/store/gyg6zyw1f0d1ahh1yk0pl18sxwx5a3zc-systemd-246.6/bin/systemctl start postfix"
-      stop program = "/nix/store/gyg6zyw1f0d1ahh1yk0pl18sxwx5a3zc-systemd-246.6/bin/systemctl stop postfix"
+      start program = "<OUTPUT-PATH>/bin/systemctl start postfix"
+      stop program = "<OUTPUT-PATH>/bin/systemctl stop postfix"
       if failed port 25 protocol smtp for 5 cycles then restart
 
 check process dovecot with pidfile /var/run/dovecot2/master.pid
-      start program = "/nix/store/gyg6zyw1f0d1ahh1yk0pl18sxwx5a3zc-systemd-246.6/bin/systemctl start dovecot2"
-      stop program = "/nix/store/gyg6zyw1f0d1ahh1yk0pl18sxwx5a3zc-systemd-246.6/bin/systemctl stop dovecot2"
+      start program = "<OUTPUT-PATH>/bin/systemctl start dovecot2"
+      stop program = "<OUTPUT-PATH>/bin/systemctl stop dovecot2"
       if failed host mx.example.com port 993 type tcpssl sslauto protocol imap for 5 cycles then restart
 
 check process rspamd with pidfile /var/run/rspamd.pid
-      start program = "/nix/store/gyg6zyw1f0d1ahh1yk0pl18sxwx5a3zc-systemd-246.6/bin/systemctl start rspamd"
-      stop program = "/nix/store/gyg6zyw1f0d1ahh1yk0pl18sxwx5a3zc-systemd-246.6/bin/systemctl stop rspamd"
+      start program = "<OUTPUT-PATH>/bin/systemctl start rspamd"
+      stop program = "<OUTPUT-PATH>/bin/systemctl stop rspamd"
 ``
 
 
diff --git a/scripts/generate-rst-options.py b/scripts/generate-rst-options.py
index da4e3dd..3a13074 100644
--- a/scripts/generate-rst-options.py
+++ b/scripts/generate-rst-options.py
@@ -1,5 +1,6 @@
 import json
 import sys
+import re
 
 header = """
 Mailserver Options
@@ -23,32 +24,38 @@ template = """
 f = open(sys.argv[1])
 options = json.load(f)
 
-options = { k: v for k, v in options.items() if k.startswith("mailserver.") }
+options = {k: v for k, v in options.items()
+           if k.startswith("mailserver.")}
+
+groups = ["mailserver.loginAccount",
+          "mailserver.certificate",
+          "mailserver.dkim",
+          "mailserver.fullTextSearch",
+          "mailserver.redis",
+          "mailserver.monitoring",
+          "mailserver.backup",
+          "mailserver.borg"]
 
-groups = [ "mailserver.loginAccount",
-           "mailserver.certificate",
-           "mailserver.dkim",
-           "mailserver.fullTextSearch",
-           "mailserver.redis",
-           "mailserver.monitoring",
-           "mailserver.backup",
-           "mailserver.borg" ]
 
 def print_option(name, value):
-    if 'default' in v:
-        if v['default'] == "":
+    if 'default' in value:
+        if value['default'] == "":
             default = '- Default: ``""``'
         else:
             default = '- Default: ``{}``'.format(v['default'])
+            # Some default values contains OUTPUTPATHS which make the
+            # output not stable across nixpkgs updates.
+            default = re.sub('/nix/store/[\w.-]*/', '<OUTPUT-PATH>/', default)  # noqa
     else:
         default = ""
     print(template.format(
-        key=k,
-        line="-"*len(k),
-        description=v['description'],
-        type="- Type: ``{}``".format(v['type']),
+        key=name,
+        line="-"*len(name),
+        description=value['description'],
+        type="- Type: ``{}``".format(value['type']),
         default=default))
 
+
 print(header)
 for k, v in options.items():
     if any([k.startswith(c) for c in groups]):