diff --git a/docs/hardware/filament_sensor.md b/docs/hardware/filament_sensor.md
index a9e41af6..d4a9f9b7 100644
--- a/docs/hardware/filament_sensor.md
+++ b/docs/hardware/filament_sensor.md
@@ -1,5 +1,9 @@
 <link rel=”manifest” href=”docs/manifest.webmanifest”>
 
+[![ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/U6U5NPB51)  
+
+---  
+
 # Filament Sensor
 
 | Specifications |