diff --git a/binary/include/common.h b/binary/include/common.h
index b600b6f..b0be73f 100644
--- a/binary/include/common.h
+++ b/binary/include/common.h
@@ -66,6 +66,7 @@ extern bool use_logical;
 extern bool use_cust_cxt;
 extern bool pbt_ab;
 extern bool pbt_logical;
+extern bool pbt_flash_mode;
 
 /* end of code */