diff --git a/samples/ControlCatalog/Pages/AutoCompleteBoxPage.xaml.cs b/samples/ControlCatalog/Pages/AutoCompleteBoxPage.xaml.cs
index 65be8c801e..f9d6a72a3a 100644
--- a/samples/ControlCatalog/Pages/AutoCompleteBoxPage.xaml.cs
+++ b/samples/ControlCatalog/Pages/AutoCompleteBoxPage.xaml.cs
@@ -9,6 +9,7 @@ using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using Avalonia.Data.Converters;
+using Avalonia.Data;
 
 namespace ControlCatalog.Pages
 {
diff --git a/tests/Avalonia.Controls.UnitTests/ButtonTests.cs b/tests/Avalonia.Controls.UnitTests/ButtonTests.cs
index a194da98a8..d218960726 100644
--- a/tests/Avalonia.Controls.UnitTests/ButtonTests.cs
+++ b/tests/Avalonia.Controls.UnitTests/ButtonTests.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Windows.Input;
+using Avalonia.Data;
 using Avalonia.Markup.Data;
 using Xunit;
 
diff --git a/tests/Avalonia.Controls.UnitTests/Primitives/SelectingItemsControlTests.cs b/tests/Avalonia.Controls.UnitTests/Primitives/SelectingItemsControlTests.cs
index 0f742f5a35..c052b81309 100644
--- a/tests/Avalonia.Controls.UnitTests/Primitives/SelectingItemsControlTests.cs
+++ b/tests/Avalonia.Controls.UnitTests/Primitives/SelectingItemsControlTests.cs
@@ -8,6 +8,7 @@ using Avalonia.Collections;
 using Avalonia.Controls.Presenters;
 using Avalonia.Controls.Primitives;
 using Avalonia.Controls.Templates;
+using Avalonia.Data;
 using Avalonia.Input;
 using Avalonia.Interactivity;
 using Avalonia.Markup.Data;
diff --git a/tests/Avalonia.Controls.UnitTests/Primitives/ToggleButtonTests.cs b/tests/Avalonia.Controls.UnitTests/Primitives/ToggleButtonTests.cs
index 377f861668..ab74d5e7d6 100644
--- a/tests/Avalonia.Controls.UnitTests/Primitives/ToggleButtonTests.cs
+++ b/tests/Avalonia.Controls.UnitTests/Primitives/ToggleButtonTests.cs
@@ -1,4 +1,5 @@
-using Avalonia.Markup.Data;
+using Avalonia.Data;
+using Avalonia.Markup.Data;
 using Avalonia.UnitTests;
 
 using Xunit;
diff --git a/tests/Avalonia.LeakTests/ControlTests.cs b/tests/Avalonia.LeakTests/ControlTests.cs
index f00dd6d5d0..6993e32515 100644
--- a/tests/Avalonia.LeakTests/ControlTests.cs
+++ b/tests/Avalonia.LeakTests/ControlTests.cs
@@ -185,7 +185,7 @@ namespace Avalonia.LeakTests
                         Content = new TextBox()
                     };
 
-                    var binding = new Avalonia.Markup.Data.Binding
+                    var binding = new Avalonia.Data.Binding
                     {
                         Path = "Name"
                     };