diff --git a/CHANGELOG.md b/CHANGELOG.md
index ca6520b706..c796a42cba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -44,6 +44,8 @@
     * `CallbackGameInlineKeyboardButton` was added
     ([Issue-79](https://github.com/InsanusMokrassar/TelegramBotAPI/issues/79),
     [PR-80](https://github.com/InsanusMokrassar/TelegramBotAPI/pull/80))
+    * `UnknownInlineKeyboardButton` was added. It is unavailable for creating, but you can receive it, for example, in
+    `InlineQueryResult`
 
 ### 0.26.2
 
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/buttons/InlineKeyboardButtons/InlineKeyboardButton.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/buttons/InlineKeyboardButtons/InlineKeyboardButton.kt
index 11c7ca255b..875655bc1f 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/buttons/InlineKeyboardButtons/InlineKeyboardButton.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/buttons/InlineKeyboardButtons/InlineKeyboardButton.kt
@@ -4,12 +4,19 @@ import com.github.insanusmokrassar.TelegramBotAPI.types.*
 import com.github.insanusmokrassar.TelegramBotAPI.types.games.CallbackGame
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
+import kotlinx.serialization.json.JsonObject
 
 @Serializable(InlineKeyboardButtonSerializer::class)
 sealed class InlineKeyboardButton {
     abstract val text: String
 }
 
+@Serializable
+data class UnknownInlineKeyboardButton internal constructor(
+    override val text: String,
+    val rawData: JsonObject
+) : InlineKeyboardButton()
+
 @Serializable
 data class PayInlineKeyboardButton(
     override val text: String,
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/buttons/InlineKeyboardButtons/InlineKeyboardButtonSerializer.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/buttons/InlineKeyboardButtons/InlineKeyboardButtonSerializer.kt
index 05a604fea6..722c2fd07a 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/buttons/InlineKeyboardButtons/InlineKeyboardButtonSerializer.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/buttons/InlineKeyboardButtons/InlineKeyboardButtonSerializer.kt
@@ -3,8 +3,7 @@ package com.github.insanusmokrassar.TelegramBotAPI.types.buttons.InlineKeyboardB
 import com.github.insanusmokrassar.TelegramBotAPI.types.*
 import com.github.insanusmokrassar.TelegramBotAPI.utils.nonstrictJsonFormat
 import kotlinx.serialization.*
-import kotlinx.serialization.json.JsonElementSerializer
-import kotlinx.serialization.json.JsonObject
+import kotlinx.serialization.json.*
 
 internal object InlineKeyboardButtonSerializer : KSerializer<InlineKeyboardButton> {
     override val descriptor: SerialDescriptor = SerialDescriptor(
@@ -12,7 +11,7 @@ internal object InlineKeyboardButtonSerializer : KSerializer<InlineKeyboardButto
         PolymorphicKind.SEALED
     )
 
-    private fun resolveSerializer(json: JsonObject): KSerializer<out InlineKeyboardButton> {
+    private fun resolveSerializer(json: JsonObject): KSerializer<out InlineKeyboardButton>? {
         return when {
             json[callbackDataField] != null -> CallbackDataInlineKeyboardButton.serializer()
             json[callbackGameField] != null -> CallbackGameInlineKeyboardButton.serializer()
@@ -21,14 +20,16 @@ internal object InlineKeyboardButtonSerializer : KSerializer<InlineKeyboardButto
             json[switchInlineQueryField] != null -> SwitchInlineQueryInlineKeyboardButton.serializer()
             json[switchInlineQueryCurrentChatField] != null -> SwitchInlineQueryCurrentChatInlineKeyboardButton.serializer()
             json[urlField] != null -> URLInlineKeyboardButton.serializer()
-            else -> throw IllegalArgumentException("Can't find correct serializer for inline button serialized as $json")
+            else -> null
         }
     }
 
     override fun deserialize(decoder: Decoder): InlineKeyboardButton {
-        val json = JsonElementSerializer.deserialize(decoder)
+        val json = JsonObjectSerializer.deserialize(decoder)
 
-        return nonstrictJsonFormat.fromJson(resolveSerializer(json.jsonObject), json)
+        return resolveSerializer(json) ?.let {
+            nonstrictJsonFormat.fromJson(it, json)
+        } ?: UnknownInlineKeyboardButton(json[textField] ?.contentOrNull ?: "", json)
     }
 
     override fun serialize(encoder: Encoder, value: InlineKeyboardButton) {