diff --git a/keystore/blob.cpp b/keystore/blob.cpp
index c3956f0..0a72d5b 100644
--- a/keystore/blob.cpp
+++ b/keystore/blob.cpp
@@ -170,7 +170,7 @@
     mBlob.version = CURRENT_BLOB_VERSION;
     mBlob.type = uint8_t(type);
 
-    if (type == TYPE_MASTER_KEY) {
+    if (type == TYPE_MASTER_KEY || type == TYPE_MASTER_KEY_AES256) {
         mBlob.flags = KEYSTORE_FLAG_ENCRYPTED;
     } else {
         mBlob.flags = KEYSTORE_FLAG_NONE;