diff --git a/src/main/java/com/cadiducho/telegrambotapi/forum/ForumTopicEdited.java b/src/main/java/com/cadiducho/telegrambotapi/forum/ForumTopicEdited.java
index 15d4503..9a1eceb 100644
--- a/src/main/java/com/cadiducho/telegrambotapi/forum/ForumTopicEdited.java
+++ b/src/main/java/com/cadiducho/telegrambotapi/forum/ForumTopicEdited.java
@@ -27,5 +27,5 @@ public class ForumTopicEdited {
     /**
      * 	Optional. New identifier of the custom emoji shown as the topic icon, if it was edited; an empty string if the icon was removed
      */
-    @Json(name = "icon_custom_emoji_id") private Integer iconCustomEmojiId;
+    @Json(name = "icon_custom_emoji_id") private String iconCustomEmojiId;
 }