diff --git a/fuel_plugin_builder/tests/base.py b/fuel_plugin_builder/tests/base.py
index b1fa858..dbf75aa 100644
--- a/fuel_plugin_builder/tests/base.py
+++ b/fuel_plugin_builder/tests/base.py
@@ -184,6 +184,17 @@ class BaseValidator(BaseTestCase):
                 "of type 'string', value path 'attributes -> key1 -> type'"):
             self.validator.check_env_config_attrs()
 
+    def test_check_env_config_attrs_generator_value(self, utils_mock):
+        utils_mock.parse_yaml.return_value = {
+            'attributes': {
+                'key1': {
+                    'type': 'hidden',
+                    'label': '',
+                    'value': {'generator': 'password'},
+                    'weight': 1}}}
+
+        self.validator.check_env_config_attrs()
+
     def test_check_env_config_attrs_restriction_fails(self, utils_mock):
         utils_mock.parse_yaml.return_value = {
             'attributes': {
diff --git a/fuel_plugin_builder/validators/schemas/base.py b/fuel_plugin_builder/validators/schemas/base.py
index 2e37703..1ad618e 100644
--- a/fuel_plugin_builder/validators/schemas/base.py
+++ b/fuel_plugin_builder/validators/schemas/base.py
@@ -169,7 +169,12 @@ class BaseSchema(object):
             'properties': {
                 'type': {'type': 'string'},
                 'weight': {'type': 'integer'},
-                'value': {'type': ['string', 'boolean']},
+                'value': {'anyOf': [
+                    {'type': 'string'},
+                    {'type': 'boolean'},
+                    {'type': 'object',
+                     'properties': {'generator': {'type': 'string'}}}
+                ]},
                 'label': {'type': 'string'},
                 'restrictions': self.restrictions,
                 'values': {'type': 'array', 'items':