diff --git a/MapControl/Shared/MapPolygon.cs b/MapControl/Shared/MapPolygon.cs
index 1e34b3ed..04232d26 100644
--- a/MapControl/Shared/MapPolygon.cs
+++ b/MapControl/Shared/MapPolygon.cs
@@ -32,7 +32,7 @@ namespace MapControl
         /// <summary>
         /// Gets or sets the Locations that define the polygon points.
         /// </summary>
-#if !UWP
+#if !WINUI && !UWP
         [System.ComponentModel.TypeConverter(typeof(LocationCollectionConverter))]
 #endif
         public IEnumerable<Location> Locations
diff --git a/MapControl/Shared/MapPolyline.cs b/MapControl/Shared/MapPolyline.cs
index 7a6f22df..7a5fb6fe 100644
--- a/MapControl/Shared/MapPolyline.cs
+++ b/MapControl/Shared/MapPolyline.cs
@@ -32,7 +32,7 @@ namespace MapControl
         /// <summary>
         /// Gets or sets the Locations that define the polyline points.
         /// </summary>
-#if !UWP
+#if !WINUI && !UWP
         [System.ComponentModel.TypeConverter(typeof(LocationCollectionConverter))]
 #endif
         public IEnumerable<Location> Locations