diff --git a/indicators/News.cs b/indicators/News.cs
index 173c7be..3d3d486 100644
--- a/indicators/News.cs
+++ b/indicators/News.cs
@@ -234,7 +234,7 @@ namespace NinjaTrader.NinjaScript.Indicators
             // Draw news events.
             using (TextFormat eventTextFormat = EventFont.ToDirectWriteTextFormat())
             {
-                foreach (var newsEvent in newsEvents)
+                foreach (var newsEvent in new List<NewsEvent>(newsEvents))
                 {
                     var timeSize = MeasureString(newsEvent.Time, eventTextFormat);
                     var currencySize = MeasureString(newsEvent.Currency, eventTextFormat);