addToStore, addToStoreFromDump: refactor: pass refs by const reference

Co-Authored-By: Eelco Dolstra <edolstra@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libstore/local-store.hh b/src/libstore/local-store.hh
index 7a7329dd8..c6441ef01 100644
--- a/src/libstore/local-store.hh
+++ b/src/libstore/local-store.hh
@@ -140,7 +140,7 @@ public:
         RepairFlag repair, CheckSigsFlag checkSigs) override;
 
     StorePath addToStoreFromDump(Source & dump, const string & name,
-        FileIngestionMethod method, HashType hashAlgo, RepairFlag repair, StorePathSet references) override;
+        FileIngestionMethod method, HashType hashAlgo, RepairFlag repair, const StorePathSet & references) override;
 
     StorePath addTextToStore(const string & name, const string & s,
         const StorePathSet & references, RepairFlag repair) override;