diff --git a/src/download.c b/src/download.c
index c80f919..f2b43f7 100644
--- a/src/download.c
+++ b/src/download.c
@@ -22,6 +22,10 @@
 #include "session.h"
 #include "uci_utils.h"
 
+#ifndef BBF_VENDOR_PREFIX
+#define BBF_VENDOR_PREFIX "X_IOWRT_EU_"
+#endif
+
 LIST_HEAD(list_download);
 LIST_HEAD(list_schedule_download);