diff --git a/src/machine/board_stm32.go b/src/machine/board_stm32.go
deleted file mode 100644
index 7153be86..00000000
--- a/src/machine/board_stm32.go
+++ /dev/null
@@ -1,5 +0,0 @@
-// +build bluepill nucleof103rb stm32f4
-
-package machine
-
-// Peripheral abstraction layer for the stm32.