diff --git a/targets/amd/serengeti_cheetah_fam10/Config-abuild.lb b/targets/amd/serengeti_cheetah_fam10/Config-abuild.lb
index d44ad345a3..286461cb45 100644
--- a/targets/amd/serengeti_cheetah_fam10/Config-abuild.lb
+++ b/targets/amd/serengeti_cheetah_fam10/Config-abuild.lb
@@ -13,7 +13,7 @@ option ROM_SIZE=1024*1024
 
 romimage "fallback" 
 	option USE_FALLBACK_IMAGE=1
-	option ROM_IMAGE_SIZE=0x22200
+	option ROM_IMAGE_SIZE=0x3f000
 	option COREBOOT_EXTRA_VERSION=".0-fallback"
 	payload __PAYLOAD__
 end