diff --git a/src/Lucene.Net.Analysis.Common/Analysis/Core/UpperCaseFilter.cs b/src/Lucene.Net.Analysis.Common/Analysis/Core/UpperCaseFilter.cs
index 0e65be6f91..f598858daa 100644
--- a/src/Lucene.Net.Analysis.Common/Analysis/Core/UpperCaseFilter.cs
+++ b/src/Lucene.Net.Analysis.Common/Analysis/Core/UpperCaseFilter.cs
@@ -46,7 +46,6 @@ public sealed class UpperCaseFilter : TokenFilter
         public UpperCaseFilter(LuceneVersion matchVersion, TokenStream @in)
             : base(@in)
         {
-            termAtt = AddAttribute<ICharTermAttribute>();
             termAtt = AddAttribute<ICharTermAttribute>();
             charUtils = CharacterUtils.GetInstance(matchVersion);
         }