diff --git a/bitbang_spi.c b/bitbang_spi.c
index c43fa2f..1c2c178 100644
--- a/bitbang_spi.c
+++ b/bitbang_spi.c
@@ -20,6 +20,7 @@
 #include "flash.h"
 #include "programmer.h"
 #include "spi.h"
+#include "bitbang_spi.h"
 
 struct bitbang_spi_master_data {
 	const struct bitbang_spi_master *mst;