diff --git a/configs/sfr_nb4-ser_ram_defconfig b/configs/sfr_nb4-ser_ram_defconfig
index 8b885e3..cd6c4a2 100644
--- a/configs/sfr_nb4-ser_ram_defconfig
+++ b/configs/sfr_nb4-ser_ram_defconfig
@@ -1,5 +1,6 @@
 CONFIG_ARCH_BMIPS=y
 CONFIG_BAUDRATE=115200
+CONFIG_BCM6345_CLK=y
 CONFIG_BCM6345_GPIO=y
 CONFIG_BCM6345_SERIAL=y
 CONFIG_BMIPS_BOOT_RAM=y