diff --git a/test/leak-tester-batch.js b/test/leak-tester-batch.js
index d57befda..5130ffe7 100644
--- a/test/leak-tester-batch.js
+++ b/test/leak-tester-batch.js
@@ -73,7 +73,7 @@ var run = CHAINED
   }
 
 db = testCommon.factory()
-db.open({ xcacheSize: 0, xmaxOpenFiles: 10 }, function () {
+db.open(function () {
   rssBase = process.memoryUsage().rss
   run()
 })
diff --git a/test/leak-tester.js b/test/leak-tester.js
index 5fd81ae3..6419bf6b 100644
--- a/test/leak-tester.js
+++ b/test/leak-tester.js
@@ -41,7 +41,7 @@ function run () {
 }
 
 db = testCommon.factory()
-db.open({ xcacheSize: 0, xmaxOpenFiles: 10 }, function () {
+db.open(function () {
   rssBase = process.memoryUsage().rss
   run()
 })