1 files changed, 2 insertions, 2 deletions
diff --git a/src/mbgl/tile/raster_dem_tile_worker.hpp b/src/mbgl/tile/raster_dem_tile_worker.hpp
index 5a8222bc2d..cce569c41e 100644
--- a/src/mbgl/tile/raster_dem_tile_worker.hpp
+++ b/src/mbgl/tile/raster_dem_tile_worker.hpp
@@ -12,9 +12,9 @@ class RasterDEMTile;
 
 class RasterDEMTileWorker {
 public:
-    RasterDEMTileWorker(ActorRef<RasterDEMTileWorker>, ActorRef<RasterDEMTile>);
+    RasterDEMTileWorker(const ActorRef<RasterDEMTileWorker>&, ActorRef<RasterDEMTile>);
 
-    void parse(std::shared_ptr<const std::string> data, uint64_t correlationID, Tileset::DEMEncoding encoding);
+    void parse(const std::shared_ptr<const std::string>& data, uint64_t correlationID, Tileset::DEMEncoding encoding);
 
 private:
     ActorRef<RasterDEMTile> parent;