diff --git a/src/mainboard/iei/pcisa-lx-800-r10/Options.lb b/src/mainboard/iei/pcisa-lx-800-r10/Options.lb
index b3a6195c32..6ff46bfba7 100644
--- a/src/mainboard/iei/pcisa-lx-800-r10/Options.lb
+++ b/src/mainboard/iei/pcisa-lx-800-r10/Options.lb
@@ -81,7 +81,7 @@ default CONFIG_GENERATE_PIRQ_TABLE = 1
 default CONFIG_IRQ_SLOT_COUNT = 9
 default CONFIG_PIRQ_ROUTE = 1
 default CONFIG_HAVE_OPTION_TABLE = 0
-default CONFIG_ROM_IMAGE_SIZE = 64 * 1024
+default CONFIG_ROM_IMAGE_SIZE = 32 * 1024
 default CONFIG_FALLBACK_SIZE = CONFIG_ROM_IMAGE_SIZE
 default CONFIG_USE_DCACHE_RAM = 1
 default CONFIG_DCACHE_RAM_BASE = 0xc8000