diff --git a/configs/bananapi_m64_defconfig b/configs/bananapi_m64_defconfig
index 40c1c18..ebc29e3 100644
--- a/configs/bananapi_m64_defconfig
+++ b/configs/bananapi_m64_defconfig
@@ -6,6 +6,7 @@
 CONFIG_MMC0_CD_PIN="PH13"
 CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 CONFIG_DEFAULT_DEVICE_TREE="sun50i-a64-bananapi-m64"
+CONFIG_NR_DRAM_BANKS=1
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 # CONFIG_CMD_FLASH is not set
 # CONFIG_SPL_DOS_PARTITION is not set