diff --git a/.sync.yml b/.sync.yml
index 0ab113d..82d7afd 100644
--- a/.sync.yml
+++ b/.sync.yml
@@ -6,4 +6,4 @@ Gemfile:
     ':testextra':
       - gem: 'rspec-mocks'
       - gem: 'rspec-expectations'
-mock_with: ':rspec
+mock_with: ':rspec'