diff --git a/keystore2/src/utils.rs b/keystore2/src/utils.rs
index 48e9bfb..bca27d1 100644
--- a/keystore2/src/utils.rs
+++ b/keystore2/src/utils.rs
@@ -223,6 +223,10 @@
 /// AID offset for uid space partitioning.
 pub const AID_USER_OFFSET: u32 = cutils_bindgen::AID_USER_OFFSET;
 
+/// AID of the keystore process itself, used for keys that
+/// keystore generates for its own use.
+pub const AID_KEYSTORE: u32 = cutils_bindgen::AID_KEYSTORE;
+
 /// Extracts the android user from the given uid.
 pub fn uid_to_android_user(uid: u32) -> u32 {
     // Safety: No memory access