diff --git a/configs/qemu-riscv64_smode_defconfig b/configs/qemu-riscv64_smode_defconfig
index 4d83570..cc2696c 100644
--- a/configs/qemu-riscv64_smode_defconfig
+++ b/configs/qemu-riscv64_smode_defconfig
@@ -13,6 +13,7 @@
 CONFIG_PREBOOT="setenv fdt_addr ${fdtcontroladdr}; fdt addr ${fdtcontroladdr};"
 CONFIG_DISPLAY_CPUINFO=y
 CONFIG_DISPLAY_BOARDINFO=y
+CONFIG_SYS_PBSIZE=276
 CONFIG_CMD_BOOTEFI_SELFTEST=y
 CONFIG_CMD_NVEDIT_EFI=y
 # CONFIG_CMD_MII is not set