diff --git a/keystore/blob.h b/keystore/blob.h
index 584e312..e2fc9be 100644
--- a/keystore/blob.h
+++ b/keystore/blob.h
@@ -70,6 +70,7 @@
     TYPE_MASTER_KEY = 2,
     TYPE_KEY_PAIR = 3,
     TYPE_KEYMASTER_10 = 4,
+    TYPE_KEY_CHARACTERISTICS = 5,
 } BlobType;
 
 class Entropy;