diff --git a/dotnet/packages/Microsoft.TeamsAI/Microsoft.TeamsAI/Utilities/CitationUtils.cs b/dotnet/packages/Microsoft.TeamsAI/Microsoft.TeamsAI/Utilities/CitationUtils.cs
index f5fcb7a8d..0c79eca7b 100644
--- a/dotnet/packages/Microsoft.TeamsAI/Microsoft.TeamsAI/Utilities/CitationUtils.cs
+++ b/dotnet/packages/Microsoft.TeamsAI/Microsoft.TeamsAI/Utilities/CitationUtils.cs
@@ -51,7 +51,7 @@ public static string FormatCitationsResponse(string text)
             }
             else
             {
-                List<ClientCitation> usedCitations = [];
+                List<ClientCitation> usedCitations = new();
                 foreach (Match match in matches)
                 {
                     citations.Find((citation) =>