1 files changed, 2 insertions, 2 deletions
diff --git a/src/mbgl/tile/raster_tile_worker.hpp b/src/mbgl/tile/raster_tile_worker.hpp
index 520973c3c3..44e12557ca 100644
--- a/src/mbgl/tile/raster_tile_worker.hpp
+++ b/src/mbgl/tile/raster_tile_worker.hpp
@@ -11,9 +11,9 @@ class RasterTile;
 
 class RasterTileWorker {
 public:
-    RasterTileWorker(ActorRef<RasterTileWorker>, ActorRef<RasterTile>);
+    RasterTileWorker(const ActorRef<RasterTileWorker>&, ActorRef<RasterTile>);
 
-    void parse(std::shared_ptr<const std::string> data, uint64_t correlationID);
+    void parse(const std::shared_ptr<const std::string>& data, uint64_t correlationID);
 
 private:
     ActorRef<RasterTile> parent;