diff --git a/buspirate_spi.c b/buspirate_spi.c
index 55e71c2..97ce220 100644
--- a/buspirate_spi.c
+++ b/buspirate_spi.c
@@ -24,6 +24,7 @@
 #include <ctype.h>
 #include "flash.h"
 #include "chipdrivers.h"
+#include "programmer.h"
 #include "spi.h"
 
 /* Change this to #define if you want to test without a serial implementation */