1 files changed, 1 insertions, 1 deletions
diff --git a/ext/rtree/rtree.c b/ext/rtree/rtree.c
index 4e473a22c..012c48d6d 100644
--- a/ext/rtree/rtree.c
+++ b/ext/rtree/rtree.c
@@ -1741,7 +1741,7 @@ static int rtreeBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
     return SQLITE_NOMEM;
   }
 
-  nRow = pRtree->nRowEst / (iIdx + 1);
+  nRow = pRtree->nRowEst >> (iIdx/2);
   pIdxInfo->estimatedCost = (double)6.0 * (double)nRow;
   setEstimatedRows(pIdxInfo, nRow);