diff --git a/src/Avalonia.Controls.DataGrid/Properties/AssemblyInfo.cs b/src/Avalonia.Controls.DataGrid/Properties/AssemblyInfo.cs
index 5c30a1b23e..f15442addf 100644
--- a/src/Avalonia.Controls.DataGrid/Properties/AssemblyInfo.cs
+++ b/src/Avalonia.Controls.DataGrid/Properties/AssemblyInfo.cs
@@ -9,3 +9,5 @@ using Avalonia.Metadata;
 [assembly: InternalsVisibleTo("Avalonia.DesignerSupport")]
 
 [assembly: XmlnsDefinition("https://github.com/avaloniaui", "Avalonia.Controls")]
+[assembly: XmlnsDefinition("https://github.com/avaloniaui", "Avalonia.Controls.Collections")]
+[assembly: XmlnsDefinition("https://github.com/avaloniaui", "Avalonia.Controls.Primitives")]