diff --git a/graphenej/src/main/java/de/bitsharesmunich/graphenej/models/backup/Wallet.java b/graphenej/src/main/java/de/bitsharesmunich/graphenej/models/backup/Wallet.java
index 528af52..b522a4e 100644
--- a/graphenej/src/main/java/de/bitsharesmunich/graphenej/models/backup/Wallet.java
+++ b/graphenej/src/main/java/de/bitsharesmunich/graphenej/models/backup/Wallet.java
@@ -51,7 +51,7 @@ public class Wallet {
         byte[] decryptedKey = new byte[Util.KEY_LENGTH];
         secureRandom.nextBytes(decryptedKey);
         this.encryption_key = Util.bytesToHex(Util.encryptAES(decryptedKey, password.getBytes()));
-        this.encrypted_brainkey = Util.bytesToHex(Util.encryptAES(decryptedKey, brainKey.getBytes()));
+        this.encrypted_brainkey = Util.bytesToHex(Util.encryptAES(brainKey.getBytes(), decryptedKey));
         this.brainkey_sequence = brainkeySequence;
         this.chain_id = chainId;