diff --git a/src/Controls/src/Build.Tasks/SetPropertiesVisitor.cs b/src/Controls/src/Build.Tasks/SetPropertiesVisitor.cs
index 4ad668f7d683..d93ab68b6a62 100644
--- a/src/Controls/src/Build.Tasks/SetPropertiesVisitor.cs
+++ b/src/Controls/src/Build.Tasks/SetPropertiesVisitor.cs
@@ -18,6 +18,7 @@ class SetPropertiesVisitor(ILContext context, bool stopOnResourceDictionary = fa
 		public static readonly IList<XmlName> skips = [
 			XmlName.xArguments,
 			XmlName.xClass,
+			XmlName.xClassModifier,
 			XmlName.xDataType,
 			XmlName.xFactoryMethod,
 			XmlName.xFieldModifier,
diff --git a/src/Controls/src/SourceGen/Visitors/SetPropertiesVisitor.cs b/src/Controls/src/SourceGen/Visitors/SetPropertiesVisitor.cs
index 935c316d1465..aca794b76f70 100644
--- a/src/Controls/src/SourceGen/Visitors/SetPropertiesVisitor.cs
+++ b/src/Controls/src/SourceGen/Visitors/SetPropertiesVisitor.cs
@@ -22,6 +22,7 @@ class SetPropertiesVisitor(SourceGenContext context, bool stopOnResourceDictiona
 	public static readonly IList<XmlName> skips = [
 	   XmlName.xArguments,
 		XmlName.xClass,
+		XmlName.xClassModifier,
 		XmlName.xDataType,
 		XmlName.xFactoryMethod,
 		XmlName.xFieldModifier,
diff --git a/src/Controls/src/Xaml/ApplyPropertiesVisitor.cs b/src/Controls/src/Xaml/ApplyPropertiesVisitor.cs
index 8e79bf733f0a..27880ae8ef97 100644
--- a/src/Controls/src/Xaml/ApplyPropertiesVisitor.cs
+++ b/src/Controls/src/Xaml/ApplyPropertiesVisitor.cs
@@ -24,6 +24,7 @@ class ApplyPropertiesVisitor : IXamlNodeVisitor
 		public static readonly IList<XmlName> Skips = [
 			XmlName.xArguments,
 			XmlName.xClass,
+			XmlName.xClassModifier,
 			XmlName.xDataType,
 			XmlName.xFactoryMethod,
 			XmlName.xFieldModifier,
diff --git a/src/Controls/src/Xaml/XamlParser.cs b/src/Controls/src/Xaml/XamlParser.cs
index 491382eca441..887585ba068e 100644
--- a/src/Controls/src/Xaml/XamlParser.cs
+++ b/src/Controls/src/Xaml/XamlParser.cs
@@ -283,6 +283,8 @@ public static XmlName ParsePropertyName(XmlName name)
 						return XmlName.xFactoryMethod;
 					case "Arguments":
 						return XmlName.xArguments;
+					case "ClassModifier":
+						return XmlName.xClassModifier;
 					default:
 						Debug.WriteLine("Unhandled attribute {0}", name);
 						return XmlName.Empty;
diff --git a/src/Controls/tests/SourceGen.UnitTests/InitializeComponent/BasicCase.cs b/src/Controls/tests/SourceGen.UnitTests/InitializeComponent/BasicCase.cs
index 866ce8481921..9ebc4b46ff6f 100644
--- a/src/Controls/tests/SourceGen.UnitTests/InitializeComponent/BasicCase.cs
+++ b/src/Controls/tests/SourceGen.UnitTests/InitializeComponent/BasicCase.cs
@@ -14,7 +14,8 @@ public void BasicXaml()
 <ContentPage
 	xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
 	xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
-	x:Class="Test.TestPage">
+	x:Class="Test.TestPage"
+	x:ClassModifier="Internal">
 		<Button x:Name="MyButton" Text="Hello MAUI!" />
 </ContentPage>
 """;
@@ -28,7 +29,7 @@ public void BasicXaml()
 namespace Test;
 
 [XamlProcessing(XamlInflator.SourceGen)]
-public partial class TestPage : ContentPage
+partial class TestPage : ContentPage
 {
 	public TestPage()
 	{
@@ -53,12 +54,12 @@ public TestPage()
 namespace Test;
 
 [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.Maui.Controls.SourceGen, Version=10.0.0.0, Culture=neutral, PublicKeyToken=null", "10.0.0.0")]
-public partial class TestPage
+internal partial class TestPage
 {
 	private partial void InitializeComponent()
 	{
 		var button = new global::Microsoft.Maui.Controls.Button();
-		global::Microsoft.Maui.VisualDiagnostics.RegisterSourceInfo(button!, new global::System.Uri(@"Test.xaml;assembly=SourceGeneratorDriver.Generated", global::System.UriKind.Relative), 6, 4);
+		global::Microsoft.Maui.VisualDiagnostics.RegisterSourceInfo(button!, new global::System.Uri(@"Test.xaml;assembly=SourceGeneratorDriver.Generated", global::System.UriKind.Relative), 7, 4);
 		var __root = this;
 		global::Microsoft.Maui.VisualDiagnostics.RegisterSourceInfo(__root!, new global::System.Uri(@"Test.xaml;assembly=SourceGeneratorDriver.Generated", global::System.UriKind.Relative), 2, 2);
 #if !_MAUIXAML_SG_NAMESCOPE_DISABLE
@@ -87,4 +88,4 @@ private partial void InitializeComponent()
 
 		Assert.AreEqual(expected, generated);
 	}
-}
\ No newline at end of file
+}