diff --git a/schemas/Error.json b/schemas/Error.json
index 34007ea..41d3f8a 100644
--- a/schemas/Error.json
+++ b/schemas/Error.json
@@ -19,7 +19,7 @@
         {"const": "OlmIndexError", "description": "E2E domain error. The room key is known but is ratcheted (index > 0)."},
         {"const": "OlmKeysNotSentError", "description": "E2E domain error. Generic unknown inbound group session error."},
         {"const": "OlmUnspecifiedError", "description": "E2E domain error. Any other decryption error (missing field, format errors...)."},
-        {"const": "UnknownError", "description": "E2E domain error. Decryption fails due to unknown error."},
+        {"const": "UnknownError", "description": "E2E domain error. Decryption failed due to unknown error."},
         {"const": "HistoricalMessage", "description": "E2E domain error. Decryption failed for a message sent before the device logged in, and key backup is not enabled."},
         {"const": "VoipUserHangup", "description": "VOIP domain error. The user hung up the call."},
         {"const": "VoipIceFailed", "description": "VOIP domain error. ICE negotiation failed."},