diff --git a/Source/DataStructureAndEncodingDefinition/gdcmByteSwapFilter.cxx b/Source/DataStructureAndEncodingDefinition/gdcmByteSwapFilter.cxx
index 7b1508f7f..fece7905a 100644
--- a/Source/DataStructureAndEncodingDefinition/gdcmByteSwapFilter.cxx
+++ b/Source/DataStructureAndEncodingDefinition/gdcmByteSwapFilter.cxx
@@ -135,7 +135,6 @@ bool ByteSwapFilter::ByteSwap()
       de.SetTag(
         Tag( SwapperDoOp::Swap( tag.GetGroup() ), SwapperDoOp::Swap( tag.GetElement() ) ) );
       copy.Insert( de );
-      DS.Remove( de.GetTag() );
       }
     DS = copy;
     }