diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb
index 36530d2b63..38b91652ee 100644
--- a/activerecord/lib/active_record/persistence.rb
+++ b/activerecord/lib/active_record/persistence.rb
@@ -106,10 +106,10 @@ module ActiveRecord
     # This is especially useful for boolean flags on existing records. Also note that
     #
     # * The attribute being updated must be a column name.
-    # * Validation is skipped
-    # * No callbacks are invoked 
-    # * updated_at/updated_on column is updated if that column is available
-    # * Does not work on associations
+    # * Validation is skipped.
+    # * No callbacks are invoked.
+    # * updated_at/updated_on column is updated if that column is available.
+    # * Does not work on associations.
     # * Does not work on attr_accessor attributes. 
     # * Does not work on new record. <tt>record.new_record?</tt> should return false for this method to work.
     # * Updates only the attribute that is input to the method. If there are other changed attributes then