diff --git a/plat/qemu/qemu_sbsa/include/platform_def.h b/plat/qemu/qemu_sbsa/include/platform_def.h
index 76340051a..75851e391 100644
--- a/plat/qemu/qemu_sbsa/include/platform_def.h
+++ b/plat/qemu/qemu_sbsa/include/platform_def.h
@@ -85,7 +85,7 @@
  */
 
 #define SHARED_RAM_BASE			SEC_SRAM_BASE
-#define SHARED_RAM_SIZE			0x00001000
+#define SHARED_RAM_SIZE			0x00002000
 
 #define PLAT_QEMU_TRUSTED_MAILBOX_BASE	SHARED_RAM_BASE
 #define PLAT_QEMU_TRUSTED_MAILBOX_SIZE	(8 + PLAT_QEMU_HOLD_SIZE)