diff --git a/keystore/operation_struct.h b/keystore/operation_struct.h
index ea8a908..00f1fe2 100644
--- a/keystore/operation_struct.h
+++ b/keystore/operation_struct.h
@@ -50,6 +50,7 @@
     KeyCharacteristics characteristics;
     sp<IBinder> appToken;
     HardwareAuthToken authToken;
+    VerificationToken verificationToken;
     const hidl_vec<KeyParameter> params;
 };