diff --git a/db/compaction/compaction_picker_level.cc b/db/compaction/compaction_picker_level.cc
index 3778d6d8d..225edf5f9 100644
--- a/db/compaction/compaction_picker_level.cc
+++ b/db/compaction/compaction_picker_level.cc
@@ -152,7 +152,8 @@ void LevelCompactionBuilder::PickFileToCompact(
     } else {
       output_level_ = start_level_;
     }
-    start_level_inputs_.files = {level_file.second};
+    start_level_inputs_.files.clear();
+    start_level_inputs_.files.push_back(level_file.second);
     start_level_inputs_.level = start_level_;
     if (compaction_picker_->ExpandInputsToCleanCut(cf_name_, vstorage_,
                                                    &start_level_inputs_)) {