diff --git a/telegrambots-meta/src/main/java/org/telegram/telegrambots/meta/api/objects/stickers/MaskPosition.java b/telegrambots-meta/src/main/java/org/telegram/telegrambots/meta/api/objects/stickers/MaskPosition.java
index 8f1e1306..647cec40 100644
--- a/telegrambots-meta/src/main/java/org/telegram/telegrambots/meta/api/objects/stickers/MaskPosition.java
+++ b/telegrambots-meta/src/main/java/org/telegram/telegrambots/meta/api/objects/stickers/MaskPosition.java
@@ -1,6 +1,7 @@
 package org.telegram.telegrambots.meta.api.objects.stickers;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
 import org.telegram.telegrambots.meta.api.interfaces.InputBotApiObject;
 import org.telegram.telegrambots.meta.api.interfaces.Validable;
 import org.telegram.telegrambots.meta.exceptions.TelegramApiValidationException;
@@ -10,6 +11,7 @@ import org.telegram.telegrambots.meta.exceptions.TelegramApiValidationException;
  * @version 3.2
  * This object describes the position on faces where a mask should be placed by default.
  */
+@JsonTypeInfo(use=JsonTypeInfo.Id.NONE)
 public class MaskPosition implements InputBotApiObject, Validable {
     private static final String POINT_FIELD = "point";
     private static final String XSHIFT_FIELD = "x_shift";
diff --git a/telegrambots-meta/src/main/java/org/telegram/telegrambots/meta/api/objects/stickers/Sticker.java b/telegrambots-meta/src/main/java/org/telegram/telegrambots/meta/api/objects/stickers/Sticker.java
index c44356d3..f33033b1 100644
--- a/telegrambots-meta/src/main/java/org/telegram/telegrambots/meta/api/objects/stickers/Sticker.java
+++ b/telegrambots-meta/src/main/java/org/telegram/telegrambots/meta/api/objects/stickers/Sticker.java
@@ -36,7 +36,7 @@ public class Sticker implements BotApiObject {
     @JsonProperty(SETNAME_FIELD)
     private String setName; ///< Optional. Name of the sticker set to which the sticker belongs
     @JsonProperty(MASKPOSITON_FIELD)
-    private String maskPosition; ///< Optional. For mask stickers, the position where the mask should be placed
+    private MaskPosition maskPosition; ///< Optional. For mask stickers, the position where the mask should be placed
 
     public Sticker() {
         super();
@@ -70,7 +70,7 @@ public class Sticker implements BotApiObject {
         return setName;
     }
 
-    public String getMaskPosition() {
+    public MaskPosition getMaskPosition() {
         return maskPosition;
     }
 
@@ -84,7 +84,7 @@ public class Sticker implements BotApiObject {
                 ", fileSize=" + fileSize +
                 ", emoji='" + emoji + '\'' +
                 ", setName='" + setName + '\'' +
-                ", maskPosition='" + maskPosition + '\'' +
+                ", maskPosition=" + maskPosition +
                 '}';
     }
 }