diff --git a/common/Definitions.h b/common/Definitions.h
index 05263436..a3a36dff 100644
--- a/common/Definitions.h
+++ b/common/Definitions.h
@@ -49,7 +49,7 @@
 
 // For FPGA
 #define ACTION_TYPE   0x52324158
-#define RELEASE_LEVEL 0x003C
+#define RELEASE_LEVEL 0x003D
 
 #define MODE_CONV                    0x0001L
 #define MODE_NONBLOCKING_ON_WR       0x0002L // Don't block acquisition if there is no WR available