diff --git a/changelogs/fragments/1268-ak_param_duplicate.yml b/changelogs/fragments/1268-ak_param_duplicate.yml
new file mode 100644
index 0000000000..951d1f15a5
--- /dev/null
+++ b/changelogs/fragments/1268-ak_param_duplicate.yml
@@ -0,0 +1,2 @@
+bugfixes:
+  - host, hostgroup - don't accidentally duplicate ``kt_activation_keys`` param (https://github.com/theforeman/foreman-ansible-modules/issues/1268)
diff --git a/plugins/module_utils/foreman_helper.py b/plugins/module_utils/foreman_helper.py
index 5a4007330d..69fe11977a 100644
--- a/plugins/module_utils/foreman_helper.py
+++ b/plugins/module_utils/foreman_helper.py
@@ -325,9 +325,10 @@ def run(self, **kwargs):
                 ak_param = {'name': 'kt_activation_keys', 'parameter_type': 'string', 'value': self.foreman_params.pop('activation_keys')}
                 self.foreman_params['parameters'] = parameters + [ak_param]
             elif 'parameters' in self.foreman_params and entity is not None:
-                ak_param = next((param for param in entity.get('parameters') if param['name'] == 'kt_activation_keys'), None)
-                if ak_param:
-                    self.foreman_params['parameters'].append(ak_param)
+                current_ak_param = next((param for param in entity.get('parameters') if param['name'] == 'kt_activation_keys'), None)
+                desired_ak_param = next((param for param in self.foreman_params['parameters'] if param['name'] == 'kt_activation_keys'), None)
+                if current_ak_param and desired_ak_param is None:
+                    self.foreman_params['parameters'].append(current_ak_param)
 
         self.validate_parameters()