diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/EffectId.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/EffectId.kt
new file mode 100644
index 0000000000..e042d8e260
--- /dev/null
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/EffectId.kt
@@ -0,0 +1,8 @@
+package dev.inmo.tgbotapi.types
+
+import kotlinx.serialization.Serializable
+import kotlin.jvm.JvmInline
+
+@Serializable
+@JvmInline
+value class EffectId(val string: String)
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/RawMessage.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/RawMessage.kt
index a8361042b5..056f5de8bf 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/RawMessage.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/RawMessage.kt
@@ -143,6 +143,8 @@ internal data class RawMessage(
 
     private val link_preview_options: LinkPreviewOptions? = null,
 
+    private val effect_id: EffectId? = null,
+
     private val reply_markup: InlineKeyboardMarkup? = null,
 
     // Business