diff --git a/schemas/Error.json b/schemas/Error.json
index 5956f2a..8164899 100644
--- a/schemas/Error.json
+++ b/schemas/Error.json
@@ -15,17 +15,18 @@
     },
     "name": {
       "type": "string",
-      "enum": [
-        "UnknownError",
-        "OlmIndexError",
-        "OlmKeysNotSentError",
-        "OlmUnspecifiedError",
-        "VoipUserHangup",
-        "VoipIceFailed",
-        "VoipInviteTimeout",
-        "VoipIceTimeout",
-        "VoipUserMediaFailed",
-        "ToDeviceFailedToDecrypt"
+      "oneOf": [
+        {"const": "OlmIndexError", "description": "E2EE domain error. The room key is known but is ratcheted (index > 0)."},
+        {"const": "OlmKeysNotSentError", "description": "E2EE domain error. Generic unknown inbound group session error."},
+        {"const": "OlmUnspecifiedError", "description": "E2EE domain error. Any other decryption error (missing field, format errors...)."},
+        {"const": "UnknownError", "description": "E2EE domain error. Decryption failed due to unknown error."},
+        {"const": "HistoricalMessage", "description": "E2EE 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."},
+        {"const": "VoipInviteTimeout", "description": "VOIP domain error. The call invite timed out."},
+        {"const": "VoipIceTimeout", "description": "VOIP domain error. ICE negotiation timed out."},
+        {"const": "VoipUserMediaFailed", "description": "VOIP domain error. The user's media failed to start."},
+        {"const": "ToDeviceFailedToDecrypt", "description": "TO_DEVICE domain error. The to-device message failed to decrypt."}
       ]
     },
     "context": {
diff --git a/types/kotlin/Error.kt b/types/kotlin/Error.kt
index e81a8da..f14cfaa 100644
--- a/types/kotlin/Error.kt
+++ b/types/kotlin/Error.kt
@@ -21,7 +21,7 @@ data class Error (
 
     val domain: Domain,
     val eventName: EventName,
-    val name: Name,
+    val name: String,
 
     /**
      * UTDs can be permanent or temporary. If temporary, this field will contain the time it
@@ -39,16 +39,3 @@ enum class Domain {
 enum class EventName {
     Error
 }
-
-enum class Name {
-    OlmIndexError,
-    OlmKeysNotSentError,
-    OlmUnspecifiedError,
-    ToDeviceFailedToDecrypt,
-    UnknownError,
-    VoipIceFailed,
-    VoipIceTimeout,
-    VoipInviteTimeout,
-    VoipUserHangup,
-    VoipUserMediaFailed
-}
diff --git a/types/kotlin2/Error.kt b/types/kotlin2/Error.kt
index 48e16e5..77ce3f1 100644
--- a/types/kotlin2/Error.kt
+++ b/types/kotlin2/Error.kt
@@ -54,15 +54,63 @@ data class Error(
     }
 
     enum class Name {
+
+        /**
+         * E2EE domain error. Decryption failed for a message sent before the
+         * device logged in, and key backup is not enabled.
+         */
+        HistoricalMessage,
+
+        /**
+         * E2EE domain error. The room key is known but is ratcheted (index >
+         * 0).
+         */
         OlmIndexError,
+
+        /**
+         * E2EE domain error. Generic unknown inbound group session error.
+         */
         OlmKeysNotSentError,
+
+        /**
+         * E2EE domain error. Any other decryption error (missing field, format
+         * errors...).
+         */
         OlmUnspecifiedError,
+
+        /**
+         * TO_DEVICE domain error. The to-device message failed to decrypt.
+         */
         ToDeviceFailedToDecrypt,
+
+        /**
+         * E2EE domain error. Decryption failed due to unknown error.
+         */
         UnknownError,
+
+        /**
+         * VOIP domain error. ICE negotiation failed.
+         */
         VoipIceFailed,
+
+        /**
+         * VOIP domain error. ICE negotiation timed out.
+         */
         VoipIceTimeout,
+
+        /**
+         * VOIP domain error. The call invite timed out.
+         */
         VoipInviteTimeout,
+
+        /**
+         * VOIP domain error. The user hung up the call.
+         */
         VoipUserHangup,
+
+        /**
+         * VOIP domain error. The user's media failed to start.
+         */
         VoipUserMediaFailed,
     }
 
diff --git a/types/swift/Error.swift b/types/swift/Error.swift
index a00f4c3..fef8ded 100644
--- a/types/swift/Error.swift
+++ b/types/swift/Error.swift
@@ -51,15 +51,27 @@ extension AnalyticsEvent {
         }
 
         public enum Name: String {
+            /// E2EE domain error. Decryption failed for a message sent before the device logged in, and key backup is not enabled.
+            case HistoricalMessage
+            /// E2EE domain error. The room key is known but is ratcheted (index > 0).
             case OlmIndexError
+            /// E2EE domain error. Generic unknown inbound group session error.
             case OlmKeysNotSentError
+            /// E2EE domain error. Any other decryption error (missing field, format errors...).
             case OlmUnspecifiedError
+            /// TO_DEVICE domain error. The to-device message failed to decrypt.
             case ToDeviceFailedToDecrypt
+            /// E2EE domain error. Decryption failed due to unknown error.
             case UnknownError
+            /// VOIP domain error. ICE negotiation failed.
             case VoipIceFailed
+            /// VOIP domain error. ICE negotiation timed out.
             case VoipIceTimeout
+            /// VOIP domain error. The call invite timed out.
             case VoipInviteTimeout
+            /// VOIP domain error. The user hung up the call.
             case VoipUserHangup
+            /// VOIP domain error. The user's media failed to start.
             case VoipUserMediaFailed
         }