diff --git a/configs/zmx25_defconfig b/configs/zmx25_defconfig
index b3eb1ca..8714d4f 100644
--- a/configs/zmx25_defconfig
+++ b/configs/zmx25_defconfig
@@ -2,6 +2,7 @@
 CONFIG_ARCH_MX25=y
 CONFIG_SYS_TEXT_BASE=0xA0000000
 CONFIG_TARGET_ZMX25=y
+CONFIG_NR_DRAM_BANKS=1
 CONFIG_BOOTDELAY=5
 # CONFIG_DISPLAY_CPUINFO is not set
 # CONFIG_DISPLAY_BOARDINFO is not set