diff --git a/db/db_universal_compaction_test.cc b/db/db_universal_compaction_test.cc
index 1c21004286..a2cae5967d 100644
--- a/db/db_universal_compaction_test.cc
+++ b/db/db_universal_compaction_test.cc
@@ -1095,6 +1095,8 @@ TEST_P(DBTestUniversalCompaction, UniversalCompactionSecondPathRatio) {
   options.arena_block_size = 4 << 10;
   options.level0_file_num_compaction_trigger = 2;
   options.num_levels = 1;
+  options.memtable_factory.reset(
+      new SpecialSkipListFactory(KNumKeysByGenerateNewFile - 1));
   options = CurrentOptions(options);
 
   std::vector<std::string> filenames;