diff --git a/archive-configs/kernel-4.10-bcm7251s.config b/archive-configs/kernel-4.10-bcm7251s.config
index 936e7fc5..6a509282 100644
--- a/archive-configs/kernel-4.10-bcm7251s.config
+++ b/archive-configs/kernel-4.10-bcm7251s.config
@@ -133,7 +133,9 @@ CONFIG_PROC_PID_CPUSET=y
 # CONFIG_SYSFS_DEPRECATED is not set
 CONFIG_RELAY=y
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE=""
+CONFIG_INITRAMFS_SOURCE="initramfs-subdirboot.cpio.gz"
+CONFIG_INITRAMFS_ROOT_UID=0
+CONFIG_INITRAMFS_ROOT_GID=0
 CONFIG_RD_GZIP=y
 # CONFIG_RD_BZIP2 is not set
 # CONFIG_RD_LZMA is not set
diff --git a/make/linux-kernel.mk b/make/linux-kernel.mk
index 0ef851ba..87f0da14 100644
--- a/make/linux-kernel.mk
+++ b/make/linux-kernel.mk
@@ -65,7 +65,6 @@ ifeq ($(BOXTYPE)-$(BOXSERIES), coolstream-hd1)
 else ifeq ($(BOXTYPE)-$(BOXSERIES), coolstream-hd2)
 	sed -i -e 's/SUBLEVEL = 108/SUBLEVEL = 93/g' $(BUILD_TMP)/$(KERNEL_SRC)/Makefile
 else ifeq ($(BOXTYPE), armbox)
-	sed -i -e 's/CONFIG_INITRAMFS_SOURCE=""/CONFIG_INITRAMFS_SOURCE="initramfs-subdirboot.cpio.gz"\nCONFIG_INITRAMFS_ROOT_UID=0\nCONFIG_INITRAMFS_ROOT_GID=0/g' $(BUILD_TMP)/$(KERNEL_OBJ)/.config
 	install -m 644 $(PATCHES)/initramfs-subdirboot.cpio.gz $(BUILD_TMP)/$(KERNEL_OBJ)
 endif
 	$(TOUCH)