diff --git a/include/fpga.h b/include/fpga.h
index 51de5c5..ec51443 100644
--- a/include/fpga.h
+++ b/include/fpga.h
@@ -15,7 +15,7 @@
 
 /* fpga_xxxx function return value definitions */
 #define FPGA_SUCCESS		0
-#define FPGA_FAIL		-1
+#define FPGA_FAIL		1
 
 /* device numbers must be non-negative */
 #define FPGA_INVALID_DEVICE	-1