diff --git a/configs/ib62x0_defconfig b/configs/ib62x0_defconfig
index 20a26d4..dd807ff 100644
--- a/configs/ib62x0_defconfig
+++ b/configs/ib62x0_defconfig
@@ -4,6 +4,7 @@
 CONFIG_TARGET_IB62X0=y
 CONFIG_IDENT_STRING=" RaidSonic ICY BOX IB-NAS62x0"
 CONFIG_DEFAULT_DEVICE_TREE="kirkwood-ib62x0"
+CONFIG_NR_DRAM_BANKS=2
 CONFIG_BOOTDELAY=3
 # CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_HUSH_PARSER=y