diff --git a/src/Avalonia.Base/Media/GeometryDrawing.cs b/src/Avalonia.Base/Media/GeometryDrawing.cs
index ac2dce1e42..abfd2e33ac 100644
--- a/src/Avalonia.Base/Media/GeometryDrawing.cs
+++ b/src/Avalonia.Base/Media/GeometryDrawing.cs
@@ -27,8 +27,8 @@ namespace Avalonia.Media
         /// <summary>
         /// Defines the <see cref="Pen"/> property.
         /// </summary>
-        public static readonly StyledProperty<Pen?> PenProperty =
-            AvaloniaProperty.Register<GeometryDrawing, Pen?>(nameof(Pen));
+        public static readonly StyledProperty<IPen?> PenProperty =
+            AvaloniaProperty.Register<GeometryDrawing, IPen?>(nameof(Pen));
 
         /// <summary>
         /// Gets or sets the <see cref="Avalonia.Media.Geometry"/> that describes the shape of this <see cref="GeometryDrawing"/>.
diff --git a/src/Avalonia.Base/Media/PolyLineSegment.cs b/src/Avalonia.Base/Media/PolyLineSegment.cs
index 55bfb33041..5c48c11e19 100644
--- a/src/Avalonia.Base/Media/PolyLineSegment.cs
+++ b/src/Avalonia.Base/Media/PolyLineSegment.cs
@@ -1,5 +1,4 @@
 using System.Collections.Generic;
-using Avalonia.Collections;
 
 namespace Avalonia.Media
 {
@@ -20,7 +19,7 @@ namespace Avalonia.Media
         /// <value>
         /// The points.
         /// </value>
-        public AvaloniaList<Point> Points
+        public Points Points
         {
             get => GetValue(PointsProperty);
             set => SetValue(PointsProperty, value);