diff --git a/sys/arduino/doc.txt b/sys/arduino/doc.txt
index 2323dc4bcd..7a35e8bac2 100644
--- a/sys/arduino/doc.txt
+++ b/sys/arduino/doc.txt
@@ -147,7 +147,6 @@
  *       functions have to be called manually from a RIOT application.
  * @todo Implement analog outputs (PWM mapping)
  * @todo Implement analog inputs (ADC mapping)
- * @todo Implement SPI interface class
  * @todo Add means to include various Arduino Libraries (maybe as pkg?)
  * @todo Implement anything else that is missing...
  * @todo Adapt Arduino build script, so sketches do not have to have the file