diff --git a/ap/build/fix_userdata_link.sh b/ap/build/fix_userdata_link.sh
new file mode 100755
index 0000000..67d23c7
--- /dev/null
+++ b/ap/build/fix_userdata_link.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+DEST_DIR=$1
+
+rm -fv $DEST_DIR/cache $DEST_DIR/var $DEST_DIR/etc_rw
+cd $DEST_DIR && ln -s /mnt/userdata/cache cache && ln -s /mnt/userdata/var var && ln -s /mnt/userdata/etc_rw etc_rw