diff --git a/src/Avalonia.Base/Media/Color.cs b/src/Avalonia.Base/Media/Color.cs
index f06f272e51..7b29ec640a 100644
--- a/src/Avalonia.Base/Media/Color.cs
+++ b/src/Avalonia.Base/Media/Color.cs
@@ -9,8 +9,8 @@ using System;
 using System.Globalization;
 #if !BUILDTASK
 using Avalonia.Animation.Animators;
-using static Avalonia.Utilities.SpanHelpers;
 #endif
+using static Avalonia.Utilities.SpanHelpers;
 
 namespace Avalonia.Media
 {
diff --git a/src/Avalonia.Base/Utilities/SpanHelpers.cs b/src/Avalonia.Base/Utilities/SpanHelpers.cs
index 9a5dce9798..f80ac7c046 100644
--- a/src/Avalonia.Base/Utilities/SpanHelpers.cs
+++ b/src/Avalonia.Base/Utilities/SpanHelpers.cs
@@ -4,7 +4,10 @@ using System.Runtime.CompilerServices;
 
 namespace Avalonia.Utilities
 {
-    public static class SpanHelpers
+#if !BUILDTASK
+    public
+#endif
+    static class SpanHelpers
     {
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static bool TryParseUInt(this ReadOnlySpan<char> span, NumberStyles style, IFormatProvider provider, out uint value)
diff --git a/src/Avalonia.Build.Tasks/Avalonia.Build.Tasks.csproj b/src/Avalonia.Build.Tasks/Avalonia.Build.Tasks.csproj
index e44b7290af..b654c66157 100644
--- a/src/Avalonia.Build.Tasks/Avalonia.Build.Tasks.csproj
+++ b/src/Avalonia.Build.Tasks/Avalonia.Build.Tasks.csproj
@@ -115,6 +115,7 @@
       </Compile>
       <Compile Include="..\Avalonia.Base\Metadata\NullableAttributes.cs" Link="NullableAttributes.cs" />
       <Compile Include="..\Avalonia.Base\Compatibility\TrimmingAttributes.cs" Link="TrimmingAttributes.cs" Visible="False" />
+      <Compile Include="..\Avalonia.Base\Utilities\SpanHelpers.cs" Link="Utilities\SpanHelpers.cs" />
       <Compile Remove="../Markup/Avalonia.Markup.Xaml.Loader\xamlil.github\**\obj\**\*.cs" />
       <Compile Remove="../Markup/Avalonia.Markup.Xaml.Loader\xamlil.github\src\XamlX\IL\SreTypeSystem.cs" />
       <PackageReference Include="Mono.Cecil" Version="0.11.4" />
diff --git a/src/Avalonia.Build.Tasks/SpanCompat.cs b/src/Avalonia.Build.Tasks/SpanCompat.cs
index be59ff8b6c..00892d56e6 100644
--- a/src/Avalonia.Build.Tasks/SpanCompat.cs
+++ b/src/Avalonia.Build.Tasks/SpanCompat.cs
@@ -85,31 +85,7 @@ namespace System
         {
             return TrimStart().TrimEnd();
         }
-
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public bool TryParseUInt(NumberStyles style, IFormatProvider provider, out uint value)
-        {
-            return uint.TryParse(ToString(), style, provider, out value);
-        }
-
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public bool TryParseInt(out int value)
-        {
-            return int.TryParse(ToString(), out value);
-        }
-
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public bool TryParseDouble(NumberStyles style, IFormatProvider provider, out double value)
-        {
-            return double.TryParse(ToString(), style, provider, out value);
-        }
-
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public bool TryParseByte(NumberStyles style, IFormatProvider provider, out byte value)
-        {
-            return byte.TryParse(ToString(), style, provider, out value);
-        }
-
+        
         public override string ToString() => _length == 0 ? string.Empty : _s.Substring(_start, _length);
 
         internal int IndexOf(ReadOnlySpan<char> v, StringComparison ordinal, int start = 0)