diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index 8f51e10a4..bb8ce57bf 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -3533,8 +3533,6 @@ std::string GCode::extrude_loop(const ExtrusionLoop &original_loop, const std::s
     // extrude along the path
     std::string gcode;
     for (ExtrusionPaths::iterator path = paths.begin(); path != paths.end(); ++path) {
-//    description += ExtrusionLoop::role_to_string(loop.loop_role());
-//    description += ExtrusionEntity::role_to_string(path->role);
         path->simplify(SCALED_RESOLUTION);
         gcode += this->_extrude(*path, description, speed);
     }
@@ -3630,8 +3628,6 @@ std::string GCode::extrude_multi_path(const ExtrusionMultiPath &multipath, const
     // extrude along the path
     std::string gcode;
     for (ExtrusionPath path : multipath.paths) {
-//    description += ExtrusionLoop::role_to_string(loop.loop_role());
-//    description += ExtrusionEntity::role_to_string(path->role);
         path.simplify(SCALED_RESOLUTION);
         gcode += this->_extrude(path, description, speed);
     }
diff --git a/src/libslic3r/PerimeterGenerator.cpp b/src/libslic3r/PerimeterGenerator.cpp
index f61bd41d2..3adc134b6 100644
--- a/src/libslic3r/PerimeterGenerator.cpp
+++ b/src/libslic3r/PerimeterGenerator.cpp
@@ -275,7 +275,6 @@ void PerimeterGenerator::process()
 
                     if (!unsupported_filtered.empty()) {
 
-
                         //add this directly to the infill list.
                         // this will avoid to throw wrong offsets into a good polygons
                         this->fill_surfaces->append(
@@ -303,9 +302,7 @@ void PerimeterGenerator::process()
             } else {
                 surface->expolygon = last[0];
                 for (size_t idx = 1; idx < last.size(); idx++) {
-                    Surface new_surf = *surface;
-                    new_surf.expolygon = last[idx];
-                    all_surfaces.push_back(new_surf);
+                    all_surfaces.emplace_back(*surface, last[idx]);
                 }
             }
         }