diff --git a/src/Avalonia.Diagnostics/Diagnostics/ViewModels/ControlDetailsViewModel.cs b/src/Avalonia.Diagnostics/Diagnostics/ViewModels/ControlDetailsViewModel.cs
index b4243c6088..764d699658 100644
--- a/src/Avalonia.Diagnostics/Diagnostics/ViewModels/ControlDetailsViewModel.cs
+++ b/src/Avalonia.Diagnostics/Diagnostics/ViewModels/ControlDetailsViewModel.cs
@@ -2,7 +2,6 @@ using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;
-using System.Text.RegularExpressions;
 using Avalonia.Collections;
 using Avalonia.VisualTree;
 
diff --git a/src/Avalonia.Diagnostics/Diagnostics/ViewModels/TreePageViewModel.cs b/src/Avalonia.Diagnostics/Diagnostics/ViewModels/TreePageViewModel.cs
index 53abba8906..bd65a3b06b 100644
--- a/src/Avalonia.Diagnostics/Diagnostics/ViewModels/TreePageViewModel.cs
+++ b/src/Avalonia.Diagnostics/Diagnostics/ViewModels/TreePageViewModel.cs
@@ -70,7 +70,7 @@ namespace Avalonia.Diagnostics.ViewModels
             {
                 try
                 {
-                    FilterRegex = new Regex(PropertyFilter);
+                    FilterRegex = new Regex(PropertyFilter, RegexOptions.Compiled);
                     ClearError();
                 }
                 catch (Exception exception)