diff --git a/arangod/Indexes/SkiplistIndex2.h b/arangod/Indexes/SkiplistIndex2.h
index 1a00a57ce4..25c93827c5 100644
--- a/arangod/Indexes/SkiplistIndex2.h
+++ b/arangod/Indexes/SkiplistIndex2.h
@@ -77,6 +77,10 @@ namespace triagens {
         struct SkiplistIteratorInterval {
           Node* _leftEndPoint;
           Node* _rightEndPoint;
+
+          SkiplistIteratorInterval ()
+            : _leftEndPoint(nullptr),
+              _rightEndPoint(nullptr) { }
         };
 
 // -----------------------------------------------------------------------------