diff --git a/hw/foboot-bitstream.py b/hw/foboot-bitstream.py
index 2bcbd2e..9311a7b 100755
--- a/hw/foboot-bitstream.py
+++ b/hw/foboot-bitstream.py
@@ -947,7 +947,7 @@ def get_rand(x):
         160,
         157696,
         262144,
-        266240,
+        262144 + 32768,
     ])
 
     with open(os.path.join(output_dir, 'gateware', 'multiboot-header.bin'), 'rb') as multiboot_header_file: