diff --git a/private/dex2oat.te b/private/dex2oat.te
index 909f94c..b08462e 100644
--- a/private/dex2oat.te
+++ b/private/dex2oat.te
@@ -17,6 +17,7 @@
 
 # Acquire advisory lock on /system/framework/arm/*
 allow dex2oat system_file:file lock;
+allow dex2oat postinstall_file:file lock;
 
 # Read already open asec_apk_file file descriptors passed by installd.
 # Also allow reading unlabeled files, to allow for upgrading forward