diff --git a/src/backend/access/gist/gist.c b/src/backend/access/gist/gist.c
index 4edc5a7..1d02e1b 100644
--- a/src/backend/access/gist/gist.c
+++ b/src/backend/access/gist/gist.c
@@ -1478,14 +1478,20 @@ gistvacuumpage(Relation rel, Page page, Buffer buffer)
 		ItemId		itemId = PageGetItemId(page, offnum);
 
 		if (ItemIdIsDead(itemId))
-			deletable[ndeletable++] = offnum;
+		{
+			deletable[ndeletable] = offnum - ndeletable;
+			ndeletable++;
+		}
 	}
 
 	if (ndeletable > 0)
 	{
+		int i;
+
 		START_CRIT_SECTION();
 
-		PageIndexMultiDelete(page, deletable, ndeletable);
+		for (i = 0; i < ndeletable; i++)
+			PageIndexTupleDelete(page, deletable[i]);
 
 		/*
 		 * Mark the page as not containing any LP_DEAD items.  This is not