diff --git a/src/machine/spi.go b/src/machine/spi.go
index 5b794460..1fe8435f 100644
--- a/src/machine/spi.go
+++ b/src/machine/spi.go
@@ -1,4 +1,4 @@
-// +build sam stm32,!stm32f407 fe310
+// +build !baremetal sam stm32,!stm32f407 fe310
 
 package machine