diff --git a/scripts/kwboot.c b/scripts/kwboot.c
index 33c94b3..81da3e8 100644
--- a/scripts/kwboot.c
+++ b/scripts/kwboot.c
@@ -334,6 +334,7 @@
 	size_t n;
 	int i;
 
+	block->soh = SOH;
 	block->pnum = pnum;
 	block->_pnum = ~block->pnum;