# Colliders not working after using ST2U

**URL:** <https://discourse.mapeditor.org/t/colliders-not-working-after-using-st2u/5455>\
**Category:** Questions\
**Created:** [February 15, 2022, 3:26pm UTC](https://discourse.mapeditor.org/t/colliders-not-working-after-using-st2u/5455 "2022-02-15T15:26:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Nines](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.mapeditor.org/nines/32/3655_2.png) [@Nines](https://discourse.mapeditor.org/u/Nines)\
**Post date:** [February 15, 2022, 3:26pm UTC](https://discourse.mapeditor.org/t/colliders-not-working-after-using-st2u/5455/1 "2022-02-15T15:26:43Z")

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Hi, when I imported my tiled map into to unity using ST2U the colliders stopped working idk if I’m being stupid or what

thx 🙂

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**Author:** ![eishiya](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.mapeditor.org/eishiya/32/2534_2.png) [@eishiya](https://discourse.mapeditor.org/u/eishiya)\
**Post date:** [February 15, 2022, 8:56pm UTC](https://discourse.mapeditor.org/t/colliders-not-working-after-using-st2u/5455/2 "2022-02-15T20:56:35Z")

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Make sure you’ve specified which collision layer the collisions should be added to using the unity:layer custom property (check the ST2U documentation for details on this), and that you’re using that collision layer for your collisions in Unity.