diff --git a/lib/redmine/wiki_formatting/macros.rb b/lib/redmine/wiki_formatting/macros.rb
index db0a5ae01..429123b4b 100644
--- a/lib/redmine/wiki_formatting/macros.rb
+++ b/lib/redmine/wiki_formatting/macros.rb
@@ -276,7 +276,7 @@ module Redmine
 
         if issue
           # remove invalid options
-          options.delete_if { |k,v| v != 'true' && v != 'false' }
+          options.delete_if {|k, v| v != 'true' && v != 'false'}
 
           # turn string values into boolean
           options.each do |k, v|