SQLITE Recursive Query

I've found an interesting recursive query here (http://ift.tt/1uYbeIn) and I adapted to my needs, but is not working.

Here's the code:

WITH cte AS (
    SELECT 0 AS lvl, collectionID, collectionName, parentCollectionID, CAST(collectionID AS VARCHAR(128)) AS Sort
           FROM collections WHERE parentCollectionID IS NULL
    UNION ALL
    SELECT p.lvl + 1, c.collectionID, c.collectionName, c.parentCollectionID, CAST(p.Sort + '/' + CAST(c.collectionID AS VARCHAR) AS VARCHAR(128))
          FROM collections c
          INNER JOIN cte p ON p.collectionID = c.parentCollectionID
        )
SELECT 
collectionID, 
SPACE(lvl * 4) + collectionName AS collectionName, 
Sort,
parentCollectionID 
FROM cte ORDER BY Sort;

I receive this message: "Kernel error: near "WITH": syntax error"

Please, what I have to do to fix it? I'm using SQLIte 3.8.2