diff --git a/include/fpga.h b/include/fpga.h
index 6365e15..13b1bbe 100644
--- a/include/fpga.h
+++ b/include/fpga.h
@@ -75,5 +75,6 @@
 int fpga_info(int devnum);
 const fpga_desc *const fpga_validate(int devnum, const void *buf,
 				     size_t bsize, char *fn);
+int fpga_compatible2flag(int devnum, const char *compatible);
 
 #endif	/* _FPGA_H_ */