diff --git a/build.config.rockpi4 b/build.config.rockpi4
index 2aae142dc5c0..424e568f018c 100644
--- a/build.config.rockpi4
+++ b/build.config.rockpi4
@@ -4,6 +4,7 @@ TRIM_NONLISTED_KMI=""
 KMI_SYMBOL_LIST_STRICT_MODE=""
 
 BUILD_INITRAMFS=1
+LZ4_RAMDISK=1
 DEFCONFIG=rockpi4_gki_defconfig
 FRAGMENT_CONFIG=${KERNEL_DIR}/arch/arm64/configs/rockpi4_gki.fragment
 PRE_DEFCONFIG_CMDS="KCONFIG_CONFIG=${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/${DEFCONFIG} ${ROOT_DIR}/${KERNEL_DIR}/scripts/kconfig/merge_config.sh -m -r ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/gki_defconfig ${ROOT_DIR}/${FRAGMENT_CONFIG}"