diff --git a/microdroid_manager/src/main.rs b/microdroid_manager/src/main.rs
index a706dbe..341105c 100644
--- a/microdroid_manager/src/main.rs
+++ b/microdroid_manager/src/main.rs
@@ -85,7 +85,7 @@
 const ENCRYPTEDSTORE_BACKING_DEVICE: &str = "/dev/block/by-name/encryptedstore";
 const ENCRYPTEDSTORE_BIN: &str = "/system/bin/encryptedstore";
 const ENCRYPTEDSTORE_KEY_IDENTIFIER: &str = "encryptedstore_key";
-const ENCRYPTEDSTORE_KEYSIZE: u32 = 64;
+const ENCRYPTEDSTORE_KEYSIZE: u32 = 32;
 const ENCRYPTEDSTORE_MOUNTPOINT: &str = "/mnt/encryptedstore";
 
 #[derive(thiserror::Error, Debug)]