diff --git a/configs/huawei_hg556a_ram_defconfig b/configs/huawei_hg556a_ram_defconfig
index ccfdf1d..71e1163 100644
--- a/configs/huawei_hg556a_ram_defconfig
+++ b/configs/huawei_hg556a_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