diff --git a/src/soc/amd/stoneyridge/Kconfig b/src/soc/amd/stoneyridge/Kconfig
index 1e35d766af..4ae08d20ae 100644
--- a/src/soc/amd/stoneyridge/Kconfig
+++ b/src/soc/amd/stoneyridge/Kconfig
@@ -260,7 +260,7 @@ config SMM_TSEG_SIZE
 
 config SMM_RESERVED_SIZE
 	hex
-	default 0x150000
+	default 0x160000
 
 config SMM_MODULE_STACK_SIZE
 	hex