diff --git a/TESTED.md b/TESTED.md
index 33f82a2..1b10893 100644
--- a/TESTED.md
+++ b/TESTED.md
@@ -2,6 +2,7 @@
 
 This is not by any means an exhaustive list. Many more devices are supported but these devices are the ones that are confirmed to be working. To add to this list, submit a pull request adding your device.
 
+
 | Device              | Compatible? |              Config Name               |
 | :-----------------: | :---------: | :------------------------------------: |
 | MX Master 3         |     Yes     | `Wireless Mouse MX Master 3`           |
@@ -12,6 +13,7 @@ This is not by any means an exhaustive list. Many more devices are supported but
 | MX Anywhere 3       |     Yes     | `MX Anywhere 3`                        |
 | MX Vertical         |     Yes     | `MX Vertical Advanced Ergonomic Mouse` |
 | MX Ergo             |     Yes     | `MX Ergo Multi-Device Trackball `      |
+| MX Ergo M575        |     Yes     | `ERGO M575 Trackball`                  |
 | M720                |     Yes     | `M720 Triathlon Multi-Device Mouse`    |
 | M590                |     Yes     | `M585/M590 Multi-Device Mouse`         |
 | T400                |     Yes     | `Zone Touch Mouse T400`                |