diff --git a/sst28sf040.c b/sst28sf040.c
index f253e39..bbb9d56 100644
--- a/sst28sf040.c
+++ b/sst28sf040.c
@@ -21,6 +21,7 @@
  */
 
 #include "flash.h"
+#include "chipdrivers.h"
 
 #define AUTO_PG_ERASE1		0x20
 #define AUTO_PG_ERASE2		0xD0