diff --git a/simgear/hla/RTIData.hxx b/simgear/hla/RTIData.hxx
index 2dc32b06..94971d0f 100644
--- a/simgear/hla/RTIData.hxx
+++ b/simgear/hla/RTIData.hxx
@@ -431,12 +431,6 @@ private:
     unsigned _capacity;
 };
 
-// A single attribute/parameter update blob
-typedef std::pair<unsigned, RTIData> RTIIndexDataPair;
-
-// A complete set of updates we received in one reflect/receive call
-typedef std::list<RTIIndexDataPair> RTIIndexDataPairList;
-
 /// Gets an own header at some time
 
 class RTIBasicDataStream {