diff --git a/arangod/RocksDBEngine/RocksDBCollection.cpp b/arangod/RocksDBEngine/RocksDBCollection.cpp
index dd353cf356..a4ac708960 100644
--- a/arangod/RocksDBEngine/RocksDBCollection.cpp
+++ b/arangod/RocksDBEngine/RocksDBCollection.cpp
@@ -859,8 +859,6 @@ Result RocksDBCollection::insert(arangodb::transaction::Methods* trx,
   resultMarkerTick = 0;
 
   LocalDocumentId const documentId = LocalDocumentId::create();
-  VPackSlice fromSlice;
-  VPackSlice toSlice;
   auto isEdgeCollection = (TRI_COL_TYPE_EDGE == _logicalCollection.type());
   transaction::BuilderLeaser builder(trx);
   Result res(newObjectForInsert(trx, slice, isEdgeCollection,