diff --git a/_sections/home-english.md b/_sections/home-english.md
index 556e819..05db2c8 100644
--- a/_sections/home-english.md
+++ b/_sections/home-english.md
@@ -80,8 +80,8 @@ XLSForm supports a number of question types. These are just some of the options
 | barcode                   | Scan a barcode, requires the barcode scanner app to be installed.                            |
 | calculate                 | Perform a calculation; see the **Calculation** section below.                                |
 | acknowledge               | Acknowledge prompt that sets value to "OK" if selected.                                      |
-| hidden                    | A field with no associated UI element                                                        |
-| xml-external              | Adds a reference to an [external XML data](#external-xml-data) file                               |
+| hidden                    | A field with no associated UI element which can be used to store a constant                  |
+| xml-external              | Adds a reference to an [external XML data](#external-xml-data) file                          |
 
 ### GPS
 For example, to collect the name and GPS coordinates of a store, you would write the following: