diff --git a/pym/unix/variables/unix.py b/pym/unix/variables/unix.py
index e4637aa..bf97d93 100644
--- a/pym/unix/variables/unix.py
+++ b/pym/unix/variables/unix.py
@@ -103,6 +103,9 @@ class VariableClUnixPwGenerateSet(Variable):
         self.label = _("Generate new service password")
         self.help = _("generate new service password")
 
+    def uncompatible(self):
+        if self.Get('server.sr_unix_set') != 'on':
+            return "Unavailable for unconfigured Unix service"
 
 class VariableClUnixRemoveSet(Variable):
     """
@@ -122,3 +125,6 @@ class VariableClUnixRemoveSet(Variable):
         if self.Get('server.sr_unix_set') != 'on':
             raise VariableError(_("Unix service is not setup"))
 
+    def uncompatible(self):
+        if self.Get('server.sr_unix_set') != 'on':
+            return "Unavailable for unconfigured Unix service"