diff --git a/src/Xmla.js b/src/Xmla.js
index 50001a7..b474358 100644
--- a/src/Xmla.js
+++ b/src/Xmla.js
@@ -7797,7 +7797,7 @@ Xmla.Dataset.Cellset.prototype = {
             return this._cellOrd;
         }
         else {
-            this._idx = 0;
+            this._idx = -1;
             return -1;
         }
     },