diff --git a/lib/redmine/twofa.rb b/lib/redmine/twofa.rb
index 0096f3951..d43cdc98b 100644
--- a/lib/redmine/twofa.rb
+++ b/lib/redmine/twofa.rb
@@ -38,7 +38,7 @@ module Redmine
 
     def self.unpair_all!
       users = User.where.not(twofa_scheme: nil)
-      users.each { |u| self.for_user(u).destroy_pairing_without_verify! }
+      users.each {|u| self.for_user(u).destroy_pairing_without_verify!}
     end
 
     def self.schemes
@@ -48,7 +48,7 @@ module Redmine
     private_class_method :schemes
 
     def self.initialize_schemes
-      @@schemes ||= { }
+      @@schemes ||= {}
       scan_builtin_schemes if @@schemes.blank?
     end
     private_class_method :initialize_schemes