diff --git a/AvRichTextBox/FlowDocument/FlowDocument.cs b/AvRichTextBox/FlowDocument/FlowDocument.cs
index ca13cb3..749ff43 100644
--- a/AvRichTextBox/FlowDocument/FlowDocument.cs
+++ b/AvRichTextBox/FlowDocument/FlowDocument.cs
@@ -233,7 +233,7 @@ internal async void InitializeDocument()
 
         Dispatcher.UIThread.Post(() =>
         {
-            if (AllParagraphs.ToList()[0] is Paragraph firstPar)
+            if (AllParagraphs.FirstOrDefault() is Paragraph firstPar)
             {  //Required for initial caret display
                 firstPar.CallRequestTextBoxFocus();
                 firstPar.CallRequestTextLayoutInfoStart();