diff --git a/tests/Avalonia.IntegrationTests.Appium/WindowTests.cs b/tests/Avalonia.IntegrationTests.Appium/WindowTests.cs
index 831bce064a..eece0d4c17 100644
--- a/tests/Avalonia.IntegrationTests.Appium/WindowTests.cs
+++ b/tests/Avalonia.IntegrationTests.Appium/WindowTests.cs
@@ -205,6 +205,17 @@ namespace Avalonia.IntegrationTests.Appium
             }
         }
 
+        [Fact]
+        public void Extended_Client_Window_Shows_With_Requested_Size()
+        {
+            var clientSize = new Size(400, 400);
+            using var window = OpenWindow(clientSize, ShowWindowMode.NonOwned, WindowStartupLocation.CenterScreen, extendClientArea: true);
+            var windowState = _session.FindElementByAccessibilityId("CurrentWindowState");
+            var current = GetWindowInfo();
+
+            Assert.Equal(current.ClientSize, clientSize);
+        }
+
         [Fact]
         public void TransparentWindow()
         {