diff --git a/README.md b/README.md
index 2355fca..2ea56c7 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ Spoolman is still relatively new, so support isn't widespread yet, but it's bein
 * ✔️ Moonraker - See the [Moonraker Documentation](https://moonraker.readthedocs.io/en/latest/configuration/#spoolman)
   * ✔️ Fluidd
   * ✔️ KlipperScreen
-  * ✖️ Mainsail
+  * ✔️ Mainsail
 * ✖️ Octoprint - A plugin is in progress: [OctoPrint-Spoolman](https://github.com/mkevenaar/OctoPrint-Spoolman)
 
 ## Installation