diff --git a/include/hardware/keymaster_defs.h b/include/hardware/keymaster_defs.h
index 2b43f2c..9105ee9 100644
--- a/include/hardware/keymaster_defs.h
+++ b/include/hardware/keymaster_defs.h
@@ -347,6 +347,7 @@
     KM_ERROR_INVALID_NONCE = -52,
     KM_ERROR_UNSUPPORTED_CHUNK_LENGTH = -53,
     KM_ERROR_RESCOPABLE_KEY_NOT_USABLE = -54,
+    KM_ERROR_CALLER_NONCE_PROHIBITED = -55,
 
     KM_ERROR_UNIMPLEMENTED = -100,
     KM_ERROR_VERSION_MISMATCH = -101,