diff --git a/README.md b/README.md
index 9b5cf9cb..a5d79861 100644
--- a/README.md
+++ b/README.md
@@ -541,31 +541,31 @@ The following table shows the html element you will get for each attribute
 according to its database definition. These defaults can be changed by
 specifying the helper method in the column `Mapping` as the `as:` option.
 
-     Mapping         | Generated HTML Element               | Database Column Type
-     --------------- |:-------------------------------------|:--------------------
-     `boolean`       | `input[type=checkbox]`               | `boolean`
-     `string`        | `input[type=text]`                   | `string`
-     `email`         | `input[type=email]`                  | `string` with `name =~ /email/`
-     `url`           | `input[type=url]`                    | `string` with `name =~ /url/`
-     `tel`           | `input[type=tel]`                    | `string` with `name =~ /phone/`
-     `password`      | `input[type=password]`               | `string` with `name =~ /password/`
-     `search`        | `input[type=search]`                 | -
-     `uuid`          | `input[type=text]`                   | `uuid`
-     `text`          | `textarea`                           | `text`
-     `file`          | `input[type=file]`                   | `string` responding to file methods
-     `hidden`        | `input[type=hidden]`                 | -
-     `integer`       | `input[type=number]`                 | `integer`
-     `float`         | `input[type=number]`                 | `float`
-     `decimal`       | `input[type=number]`                 | `decimal`
-     `range`         | `input[type=range]`                  | -
-     `datetime`      | `datetime select`                    | `datetime/timestamp`
-     `date`          | `date select`                        | `date`
-     `time`          | `time select`                        | `time`
-     `select`        | `select`                             | `belongs_to`/`has_many`/`has_and_belongs_to_many` associations
-     `radio_buttons` | collection of `input[type=radio]`    | `belongs_to` associations
-     `check_boxes`   | collection of `input[type=checkbox]` | `has_many`/`has_and_belongs_to_many` associations
-     `country`       | `select` (countries as options)      | `string` with `name =~ /country/`
-     `time_zone`     | `select` (timezones as options)      | `string` with `name =~ /time_zone/`
+Mapping         | Generated HTML Element               | Database Column Type
+--------------- |--------------------------------------|---------------------
+`boolean`       | `input[type=checkbox]`               | `boolean`
+`string`        | `input[type=text]`                   | `string`
+`email`         | `input[type=email]`                  | `string` with `name =~ /email/`
+`url`           | `input[type=url]`                    | `string` with `name =~ /url/`
+`tel`           | `input[type=tel]`                    | `string` with `name =~ /phone/`
+`password`      | `input[type=password]`               | `string` with `name =~ /password/`
+`search`        | `input[type=search]`                 | -
+`uuid`          | `input[type=text]`                   | `uuid`
+`text`          | `textarea`                           | `text`
+`file`          | `input[type=file]`                   | `string` responding to file methods
+`hidden`        | `input[type=hidden]`                 | -
+`integer`       | `input[type=number]`                 | `integer`
+`float`         | `input[type=number]`                 | `float`
+`decimal`       | `input[type=number]`                 | `decimal`
+`range`         | `input[type=range]`                  | -
+`datetime`      | `datetime select`                    | `datetime/timestamp`
+`date`          | `date select`                        | `date`
+`time`          | `time select`                        | `time`
+`select`        | `select`                             | `belongs_to`/`has_many`/`has_and_belongs_to_many` associations
+`radio_buttons` | collection of `input[type=radio]`    | `belongs_to` associations
+`check_boxes`   | collection of `input[type=checkbox]` | `has_many`/`has_and_belongs_to_many` associations
+`country`       | `select` (countries as options)      | `string` with `name =~ /country/`
+`time_zone`     | `select` (timezones as options)      | `string` with `name =~ /time_zone/`
 
 ## Custom inputs