diff --git a/simgear/hla/HLAObjectInstance.hxx b/simgear/hla/HLAObjectInstance.hxx
index d0f47b08..e6af5a62 100644
--- a/simgear/hla/HLAObjectInstance.hxx
+++ b/simgear/hla/HLAObjectInstance.hxx
@@ -159,7 +159,6 @@ private:
     struct Attribute {
         Attribute() : _enabledUpdate(false), _unconditionalUpdate(false) {}
         SGSharedPtr<HLADataElement> _dataElement;
-        // SGSharedPtr<HLADataElement::TimeStamp> _timeStamp;
         bool _enabledUpdate;
         bool _unconditionalUpdate;
         // HLAIndexList::iterator _unconditionalUpdateAttributeIndexListIterator;