diff --git a/fuel_plugin_builder/tests/test_validator_v3.py b/fuel_plugin_builder/tests/test_validator_v3.py
index 9d2294d..a825999 100644
--- a/fuel_plugin_builder/tests/test_validator_v3.py
+++ b/fuel_plugin_builder/tests/test_validator_v3.py
@@ -549,6 +549,24 @@ class TestValidatorV3(BaseValidator):
             utils_mock, mock_data,
             err_msg, self.validator.check_node_roles_schema)
 
+    @mock.patch('fuel_plugin_builder.validators.base.utils')
+    def test_check_node_role_conflicts(self, utils_mock):
+        utils_mock.parse_yaml.return_value = {
+            'plugin_name': {
+                'name': 'test_plugin',
+                'description': 'test plugin',
+                'conflicts': '*'}}
+
+        self.validator.check_node_roles_schema()
+
+        utils_mock.parse_yaml.return_value = {
+            'plugin_name': {
+                'name': 'test_plugin',
+                'description': 'test plugin',
+                'conflicts': ['some_role']}}
+
+        self.validator.check_node_roles_schema()
+
     @mock.patch('fuel_plugin_builder.validators.base.utils')
     def test_check_valid_volumes_roles_mapping_name(self, utils_mock):
         utils_mock.parse_yaml.return_value = {
diff --git a/fuel_plugin_builder/validators/schemas/v3.py b/fuel_plugin_builder/validators/schemas/v3.py
index 81e3374..d79411d 100644
--- a/fuel_plugin_builder/validators/schemas/v3.py
+++ b/fuel_plugin_builder/validators/schemas/v3.py
@@ -326,7 +326,10 @@ class SchemaV3(SchemaV2):
                             'type': 'string',
                             'description': ('Short description of role'
                                             ' functionality')},
-                        'conflicts': self.list_of_strings,
+                        'conflicts': {
+                            'oneOf': [
+                                self.list_of_strings,
+                                {'type': 'string', 'enum': ['*']}]},
                         'has_primary': {
                             'type': 'boolean',
                             'description': ('During orchestration this role'