diff --git a/src/libslic3r/Rasterizer/Rasterizer.cpp b/src/libslic3r/Rasterizer/Rasterizer.cpp
index 4393f21b8..17d04d21b 100644
--- a/src/libslic3r/Rasterizer/Rasterizer.cpp
+++ b/src/libslic3r/Rasterizer/Rasterizer.cpp
@@ -247,7 +247,7 @@ RawBytes Raster::save(Raster::Compression comp)
     }
     }
 
-    return ret;
+    return std::move(ret);
 }
 
 }