diff --git a/PRIVATE/README.md b/PRIVATE/README.md
index 9ac08b8..24718e5 100644
--- a/PRIVATE/README.md
+++ b/PRIVATE/README.md
@@ -1,5 +1,9 @@
 This folder may contain private overrides for NPBackup secrets.
 
+Overrides are used by default if found at execution time.
+
+In order to use them at compile time, one needs to run `compile.py --audience private`
+
 1. You can create a file called _private_secret_keys.py to override default secret_keys.py file from npbackup
 2. You may obfuscate the AES key at runtime by creating a file called `_private_obfuscation.py` that must contain
 a function `obfuscation(bytes) -> bytes` like `aes_key_derivate = obfuscation(aes_key)` where aes_key_derivate must be 32 bytes.