diff --git a/.pylintrc b/.pylintrc
index c723cd37017..fbf048414d2 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -179,8 +179,6 @@ disable=
  redefined-argument-from-local,
  consider-using-ternary,
  literal-comparison,
- consider-merging-isinstance,
- consider-merging-isinstance,
  too-many-boolean-expressions,
  useless-object-inheritance,
  trailing-comma-tuple,
diff --git a/cinder/db/sqlalchemy/api.py b/cinder/db/sqlalchemy/api.py
index cb88b409846..ecc74631c98 100644
--- a/cinder/db/sqlalchemy/api.py
+++ b/cinder/db/sqlalchemy/api.py
@@ -1880,7 +1880,7 @@ def _process_model_like_filter(model, query, filters):
         if 'property' == type(column_attr).__name__:
             continue
         value = filters[key]
-        if not (isinstance(value, six.string_types) or isinstance(value, int)):
+        if not (isinstance(value, (six.string_types, int))):
             continue
         query = query.filter(
             column_attr.op('LIKE')(u'%%%s%%' % value))
diff --git a/cinder/hacking/checks.py b/cinder/hacking/checks.py
index 0443b24ec4d..1a1cf8a38de 100644
--- a/cinder/hacking/checks.py
+++ b/cinder/hacking/checks.py
@@ -315,7 +315,7 @@ class CheckOptRegistrationArgs(BaseASTChecker):
             return None
 
     def _is_list_or_tuple(self, obj):
-        return isinstance(obj, ast.List) or isinstance(obj, ast.Tuple)
+        return isinstance(obj, (ast.List, ast.Tuple))
 
     def visit_Call(self, node):
         """Look for the register_opt/register_opts calls."""