diff --git a/java/src/org/openqa/selenium/Rectangle.java b/java/src/org/openqa/selenium/Rectangle.java
index 20c9d44824b0b..f56fa1539c492 100644
--- a/java/src/org/openqa/selenium/Rectangle.java
+++ b/java/src/org/openqa/selenium/Rectangle.java
@@ -17,6 +17,7 @@
 
 package org.openqa.selenium;
 
+import java.util.Map;
 import java.util.Objects;
 
 public class Rectangle {
@@ -64,6 +65,10 @@ public Dimension getDimension() {
     return new Dimension(width, height);
   }
 
+  private Map<String, Object> toJson() {
+    return Map.of("width", width, "height", height, "x", x, "y", y);
+  }
+
   @Override
   public boolean equals(Object o) {
     if (this == o) {