diff --git a/lib/redmine/sort_criteria.rb b/lib/redmine/sort_criteria.rb
index 4de81900e..5162f14cb 100644
--- a/lib/redmine/sort_criteria.rb
+++ b/lib/redmine/sort_criteria.rb
@@ -89,8 +89,8 @@ module Redmine
     private
 
     def normalize!
-      self.reject! {|s| s.first.blank? }
-      self.uniq! {|s| s.first }
+      self.reject! {|s| s.first.blank?}
+      self.uniq! {|s| s.first}
       self.collect! {|s| s = Array(s); [s.first, (s.last == false || s.last.to_s == 'desc') ? 'desc' : 'asc']}
       self.replace self.first(3)
     end