diff --git a/.rubocop.yml b/.rubocop.yml
index a4b51008194..53ca2ca2191 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -877,7 +877,7 @@ Lint/ParenthesesAsGroupedExpression:
                  Checks for method calls with a space before the opening
                  parenthesis.
   StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#parens-no-spaces'
-  Enabled: false
+  Enabled: true
 
 Lint/RequireParentheses:
   Description: >-
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index af76f3c439e..489be210784 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -143,7 +143,7 @@ module API
 
     class ProjectEntity < Grape::Entity
       expose :id, :iid
-      expose (:project_id) { |entity| entity.project.id }
+      expose(:project_id) { |entity| entity.project.id }
       expose :title, :description
       expose :state, :created_at, :updated_at
     end