diff --git a/configs/at91sam9x5ek_nandflash_defconfig b/configs/at91sam9x5ek_nandflash_defconfig
index 87944fc..669cbcd 100644
--- a/configs/at91sam9x5ek_nandflash_defconfig
+++ b/configs/at91sam9x5ek_nandflash_defconfig
@@ -8,6 +8,7 @@
 CONFIG_DEBUG_UART_CLOCK=132000000
 CONFIG_DEFAULT_DEVICE_TREE="at91sam9g35ek"
 CONFIG_DEBUG_UART=y
+CONFIG_NR_DRAM_BANKS=1
 CONFIG_NAND_BOOT=y
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTARGS=y