diff --git a/app/models/issue.rb b/app/models/issue.rb
index e01dcc9..43c298b 100644
--- a/app/models/issue.rb
+++ b/app/models/issue.rb
@@ -1022,8 +1022,8 @@ class Issue < ActiveRecord::Base
     end
   end
 
-	# Returns true if issue's project is a valid
-	# parent issue project
+  # Returns true if issue's project is a valid
+  # parent issue project
   def valid_parent_project?(issue=parent)
     return true if issue.nil? || issue.project_id == project_id