diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/ChatJoinRequest.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/ChatJoinRequest.kt
index cad68fefe7..90a00b33f7 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/ChatJoinRequest.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/chat/ChatJoinRequest.kt
@@ -16,7 +16,7 @@ data class ChatJoinRequest(
     @SerialName(fromField)
     override val from: User,
     @SerialName(userChatIdField)
-    val userChatId: Identifier,
+    val userChatId: UserId,
     @SerialName(dateField)
     val date: TelegramDate,
     @SerialName(inviteLinkField)