diff --git a/TwitchDownloaderWPF/PageChatRender.xaml.cs b/TwitchDownloaderWPF/PageChatRender.xaml.cs
index de31fa85..e117e8be 100644
--- a/TwitchDownloaderWPF/PageChatRender.xaml.cs
+++ b/TwitchDownloaderWPF/PageChatRender.xaml.cs
@@ -743,6 +743,9 @@ private void MenuItemPartialRender_Click(object sender, RoutedEventArgs e)
 
         private void TextJson_TextChanged(object sender, TextChangedEventArgs e)
         {
+            if (!IsInitialized)
+                return;
+
             FileNames = textJson.Text.Split("&&", StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries);
             UpdateActionButtons(false);
         }