diff --git a/app/models/todo.rb b/app/models/todo.rb
index 4fec3a33..8785ebee 100644
--- a/app/models/todo.rb
+++ b/app/models/todo.rb
@@ -121,6 +121,7 @@ class Todo < ActiveRecord::Base
     if !show_from.blank? && show_from < user.date
       errors.add("show_from", "must be a date in the future")
     end
+    errors.add(:description, "may not contain \" characters") if /\"/.match(description)
     unless @predecessor_array.nil? # Only validate predecessors if they changed
       @predecessor_array.each do |specification|
         t = todo_from_specification(specification)