diff --git a/src/Avalonia.Base/Media/TextFormatting/TextLineImpl.cs b/src/Avalonia.Base/Media/TextFormatting/TextLineImpl.cs
index e7efa33435..72a8ec8941 100644
--- a/src/Avalonia.Base/Media/TextFormatting/TextLineImpl.cs
+++ b/src/Avalonia.Base/Media/TextFormatting/TextLineImpl.cs
@@ -1438,7 +1438,7 @@ namespace Avalonia.Media.TextFormatting
 
             var lastRunIndex = _textRuns.Count - 1;
 
-            if (_textRuns[lastRunIndex] is TextEndOfLine && lastRunIndex > 0)
+            if (lastRunIndex > 0 && _textRuns[lastRunIndex] is TextEndOfLine)
             {
                 lastRunIndex--;
             }