diff --git a/src/AvaloniaEdit.TextMate/Compatibility/Math.cs b/src/AvaloniaEdit.TextMate/Compatibility/Math.cs
new file mode 100644
index 00000000..073da018
--- /dev/null
+++ b/src/AvaloniaEdit.TextMate/Compatibility/Math.cs
@@ -0,0 +1,11 @@
+namespace AvaloniaEdit.TextMate.Compatibility
+{
+    internal static class Math
+    {
+        [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
+        public static int Clamp(int value, int min, int max)
+        {
+            return (value < min) ? min : (value > max) ? max : value;
+        }
+    }
+}
diff --git a/src/AvaloniaEdit.TextMate/TextEditorModel.cs b/src/AvaloniaEdit.TextMate/TextEditorModel.cs
index 33ed8b65..4d4de8a7 100644
--- a/src/AvaloniaEdit.TextMate/TextEditorModel.cs
+++ b/src/AvaloniaEdit.TextMate/TextEditorModel.cs
@@ -7,6 +7,12 @@
 
 using TextMateSharp.Model;
 
+#if NET6_0_OR_GREATER
+using Math = System.Math;
+#else
+using Math = AvaloniaEdit.TextMate.Compatibility.Math;
+#endif
+
 namespace AvaloniaEdit.TextMate
 {
     public class TextEditorModel : AbstractLineList, IDisposable