diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh
index e97958bf9b..8f19d3e86e 100644
--- a/package/base-files/files/lib/upgrade/common.sh
+++ b/package/base-files/files/lib/upgrade/common.sh
@@ -58,7 +58,7 @@ run_ramfs() { # <command> [...]
 	for file in $RAMFS_COPY_BIN; do
 		install_bin $file
 	done
-	install_file /etc/resolv.conf /etc/functions.sh /lib/upgrade/*.sh $RAMFS_COPY_DATA
+	install_file /etc/resolv.conf /etc/functions.sh /lib/functions.sh /lib/upgrade/*.sh $RAMFS_COPY_DATA
 
 	pivot $RAM_ROOT /mnt || {
 		echo "Failed to switch over to ramfs. Please reboot."