diff --git a/targets/amd/serengeti_cheetah_fam10/Config-abuild.lb b/targets/amd/serengeti_cheetah_fam10/Config-abuild.lb
index 3013c374af..406a7e7abd 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=0x20000
+	option ROM_IMAGE_SIZE=0x20800
 	option COREBOOT_EXTRA_VERSION=".0-fallback"
 	payload __PAYLOAD__
 end
@@ -26,4 +26,4 @@ romimage "failover"
 	option COREBOOT_EXTRA_VERSION=".0-failover"
 end
 
-buildrom ./coreboot.rom ROM_SIZE "fallback" "failover"
\ No newline at end of file
+buildrom ./coreboot.rom ROM_SIZE "fallback" "failover"