diff --git a/teensy/teensy-speaker.cpp b/teensy/teensy-speaker.cpp
index d00e595..047561a 100644
--- a/teensy/teensy-speaker.cpp
+++ b/teensy/teensy-speaker.cpp
@@ -2,7 +2,6 @@
 #include "teensy-speaker.h"
 #include "teensy-println.h"
 #include <Audio.h>
-#include <SPI.h>
 
 TeensyAudio audioDriver;
 AudioMixer4             mixer2;                 //xy=280,253