diff --git a/private/cppreopts.te b/private/cppreopts.te
index 1a8fa0b..1192ba6 100644
--- a/private/cppreopts.te
+++ b/private/cppreopts.te
@@ -25,3 +25,7 @@
 # Allow running the cp command using cppreopts permissions. Needed so we can
 # write into dalvik-cache
 allow cppreopts toolbox_exec:file rx_file_perms;
+
+# Silence the denial when /postinstall cannot be mounted, e.g., system_other
+# is wiped, but cppreopts.sh still runs.
+dontaudit cppreopts postinstall_mnt_dir:dir search;