diff --git a/rubick/discovery.py b/rubick/discovery.py
index e458ae3..8734e32 100644
--- a/rubick/discovery.py
+++ b/rubick/discovery.py
@@ -610,8 +610,7 @@ class OpenstackDiscovery(object):
         config_locations_result = client.run(
             ['bash', '-c',
              'mysqld --help --verbose '
-             '| grep "Default options are read from the following files in '
-             'the given order" -A 1'])
+             '| grep "Default options are read from" -A 1'])
         config_locations = config_locations_result.output.strip().split(
             "\n")[-1].split()
         for path in config_locations:
diff --git a/rubick/model.py b/rubick/model.py
index f6eb544..39a2701 100644
--- a/rubick/model.py
+++ b/rubick/model.py
@@ -244,11 +244,11 @@ class OpenstackComponent(Service):
                         if isinstance(type_validation_result, Issue):
                             type_validation_result.mark = parameter\
                                 .value.start_mark.merge(
-                                type_validation_result.mark)
+                                    type_validation_result.mark)
                             type_validation_result.message = \
                                 'Property "%s" in section "%s": %s' % (
-                                parameter.name.text, section_name,
-                                type_validation_result.message)
+                                    parameter.name.text, section_name,
+                                    type_validation_result.message)
                             report_issue(type_validation_result)
 
                             config.set(
diff --git a/rubick/schema.py b/rubick/schema.py
index c0b382e..268a49d 100644
--- a/rubick/schema.py
+++ b/rubick/schema.py
@@ -200,13 +200,8 @@ class SchemaIssue(Issue):
 class InvalidValueError(MarkedIssue):
 
     def __init__(self, message, mark=Mark('', 0, 0)):
-        super(
-            InvalidValueError,
-            self).__init__(
-            Issue.ERROR,
-            'Invalid value: ' +
-            message,
-            mark)
+        super(InvalidValueError,self).__init__(
+            Issue.ERROR, 'Invalid value: ' + message, mark)
 
 
 class TypeValidator(object):