diff --git a/configs/at91sam9n12ek_spiflash_defconfig b/configs/at91sam9n12ek_spiflash_defconfig
index 9c984a9..6d036ab 100644
--- a/configs/at91sam9n12ek_spiflash_defconfig
+++ b/configs/at91sam9n12ek_spiflash_defconfig
@@ -22,6 +22,7 @@
 # CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="U-Boot> "
+CONFIG_SYS_PBSIZE=281
 CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_MMC=y